Steve Jobs is Fortune’s “CEO of the Decade.” As my colleague Adam Lashinsky says in the current issue’s cover story, Jobs has created more than $150 billion in shareholder wealth–meanwhile, “transforming movies, telecom, music, and computing, and profoundly influencing the worlds of retail and design.”

I’ve met Jobs just once, three years ago, when he came to Fortune’s offices here in New York. I remember, he walked into our conference room in his uniform–the black turtleneck, the jeans, the sneakers–and sat down beside me. What could be cooler? For 90 minutes, he demoed a sleek little gadget that was weeks away from launch. Even the most jaded journalists were dazzled. It was the iPhone.

To help report the Jobs cover package, I walked over to Avon (AVP) and interviewed Chairman and CEO Andrea Jung. She didn’t know Jobs well until early last year when he asked her to join the Apple (AAPL) board. Now she’s the only female director, with six guys. She’s also on the board of another famous company founded by a famous creative guy: Thomas Edison. That’s General Electric (GE). So Jung has a front-row seat to how power works, and innovation as well.

Here’s Jung’s first-person take on Jobs.–Patricia Sellers

Steve called me one day two years ago and said, “I’m in the city, Can I come up to your office?” He sauntered in, wearing his black turtleneck, jeans and sneakers. He showed me the new shuffle. We had had some conversations before. I was a huge admirer of the company. There isn’t another consumer business like Apple. About six months later, I joined the Apple board.

All of us would like to think that we’re as focused on the consumer and the end-user experience as Steve is—that maniacal passion for the best phone, the best mp3 player, the best PC, the best retail experience.

Steve is singularly passionate about making products that people love and understand. He does it in a very black and white way, while the rest of the world gets caught up in the gray–or caught up in themselves. He is, on the one hand, the most simple and clear thinker. I so often think, ‘It sounds so simple.’ But he’s taking on things that are extraordinarily complex and arguably risky.

He breaks down barriers. If you have that disruptive vision, you don’t look at historical facts to make a new future.

Steve refuses to compromise on integrity or the consumer experience for the sake of commercialism. He’s laser-focused on getting it right. It’s a great lesson in this quarter-to-quarter world. I leave Apple board meetings thinking, ‘I’ve got to do a better job.’

The board is small—seven directors–smaller than most boards, including Avon’s. There is an extraordinary openness in the board room, and it’s incredibly interactive.  Any board member would feel free to challenge an idea or raise a concern.

He’s a real listener and wants your opinion. He’ll call on a Sunday—like one day he called to let me know that they redid the store in Soho and wanted to know what I thought of it. My son will look at my iPhone and say, “Steve Jobs is calling!” Not many CEOs have that effect on 12-year-olds.

I’ve been really impressed by his humility—his willingness to talk about mistakes or things that need to be corrected. Or things they wish they hadn’t done. It’s been not only gratifying, it’s been great. I feel like I’m part of history being made.

Gilt Groupe CEO Susan Lyne has joined the board of AOL–soon to be spun off from Time Warner (TWX).

Does Lyne love trouble, or what? Five years ago, after Martha Stewart began her five-month prison stint in West Virginia, Lyne stepped up from the Martha Stewart Living Omnimedia (MSO) board to be CEO of the company–and worked, eventually hand in hand with Martha, to rebuild the crippled company.

That was a slog (Lyne left last year), and so was her three-year stint on the board of CIT (CITGQ)–which she began in 2006 when it didn’t seem to be a terribly risky move. But it turned out to be. For the past few months, Lyne has had a seat at the table as CIT’s board and CEO Jeff Peek vied to save the company from bankruptcy. Peek failed. Lyne left the CIT board last week–one day before CIT filed Chapter 11.

So now Lyne is turning her attention to another once-mighty company that lost its way. AOL’s new CEO, Tim Armstrong, who joined from Google (GOOG) last March, is preparing for the spinoff from Time Warner by assembling a board that includes Procter & Gamble (PG) ex-global marketing chief Jim Stengel, former FCC chairman Michael Powell, tech investment banker Bill Hambrecht, and Jim Wiatt, who headed William Morris until he got squeezed out in a messy merger with talent agency Endeavor this year.

These people know pressure–and have their work cut out for them at the flagging web pioneer. Time Warner’s earnings report on Wednesday included news that AOL’s sales dropped 23% last quarter, while profits fell by half.

The good news for Lyne is that she has a positive story where, for her at least, it really counts: at Gilt Groupe. She joined the tiny purveyor of luxury goods last year, and it has become one of the fastest-growing companies in the Internet space.

“You need to build your career not as a ladder, but as a pyramid,” Yahoo (YHOO) CEO Carol Bartz said in the New York Times yesterday. I wholeheartedly agree: In today’s ever more complex world, you need to build a broad experience base–with peripheral vision and a willingness to make lateral moves. If you’ve been reading Postcards, you know that my favorite image is a jungle gym. That’s kind of like Bartz’s pyramid.

You can read more of Bartz’s career advice in her first-personer, “Just Deal with it.” But it was at last month’s Fortune Most Powerful Women Summit that she spoke about public-company board work as essential to career-building and vented about the “nonsense” of CEOs prohibiting high-potential execs from serving on other companies’ boards. The Yahoo chief is colorful, as usual, as she describes her first board meeting as the new CEO of Autodesk (ADSK) in 1992, the day after she was diagnosed with breast cancer. “I didn’t even know what a friggin’ board was,” she says:

During her 14 years running Autodesk, pre-Yahoo, Bartz was on the boards of Cisco (CSCO), Intel (INTC), NetApp (NTAP) and BEA Systems–until it was acquired by Oracle (ORCL). That’s a heavy load that I’d say paid off in prepping her for Yahoo, where she arrived in January. My Fortune colleague Adam Lashinsky and I have sparred on the value of such multiple directorships. We’ll see tomorrow how well Bartz is doing. She’s due to report Yahoo’s quarterly earnings.

Home Depot (HD) hammered it home this morning–earnings beat expectations, and the stock is up 3%, to just under $27. Nice surprise after Lowe’s (LOW) disappointed yesterday. The No. 2 home-improvement retailer reported a 19% profit dip in its second quarter and, even more worrisome to investors, a 9.5% decline in same-store sales.

So what is Home Depot, the market leader, doing right? The new Fortune, hitting newsstands this week, delivers some intelligence on that. My colleague Geoff Colvin did a comprehensive interview with Home Depot CFO Carol Tome, who has seen it all. I remember when Tome joined Home Depot from Riverwood International Corp., a packaging and paper products company, 14 years ago. (I was a student of Home Depot back then.) We’ve followed Tome via our Most Powerful Women tracking and watched her weather the tumult as the mega-retailer has gone through four CEOs. Tome has worked for Bernice Marcus, Arthur Blank, Bob Nardelli, and Frank Blake.

Now Blake is Home Depot’s chief, and Tome has an expanding purview. (She’s also on the UPS (UPS) board, where she chairs the audit committee, and last year she joined the board of the Federal Reserve Bank of Atlanta, where she’s deputy chair.) Blake and Tome and their team are doing a lot of smart things. Since you probably don’t yet have your new Fortune in hand and since the Tome interview won’t be on Fortune.com and CNNMoney.com until Thursday, here’s a preview of what the savvy survivor says about “Renovating Home Depot”:

Recognize what you’re good at. “We have a three-legged strategy, and you will recognize this from Jim Collins’ book Good to Great. What are we passionate about? We are passionate about our customers. What are we the best at? Product authority. And what drives our economic engine? Productivity and efficiency. It is no longer driven by square-footage growth. We’re still going to open stores–we’re opening 13 stores this year. But it’s not about that any longer. It’s about how do we get more sales per square foot in the existing stores.”

Rethink your people strategy. “We introduced something we call power hours inside our stores. In the hours when traffic is heaviest, we stop all activity that is not customer-facing–pack-down activities, say–and spend 100% of our time taking care of customers…Even if you’re in the receiving area, if you’re in the vault, you come out on the floor.”

Remember that  the devil is in the details. “The professional contractor is a very important customers to us–3% of our transactions and about 30% of our business. We serve coffee at the pro desk. By changing the brand of coffee–not stopping the coffee, because coffee is important–but by changing the brand, we will save our company $500,000. It doesn’t take too many $500,000 decisions to make a penny per share.”

P.S. Credit Suisse (CS) analyst Gary Balter today reaffirmed his bullish view and raised his estimates on Home Depot, noting that HD’s U.S. quarterly same-store sales, while down 8.5% company-wide and down 6.9% in the U.S., beat Lowe’s for the first time in memory. Guess that cheap coffee isn’t turning off too many Home Depot customers.

by Patricia Sellers

Sallie Krawcheck has landed back at another troubled bank giant. Citigroup’s (C) onetime CFO, who later headed global wealth management there and clashed with Citi CEO Vikram Pandit, has accepted a job at Bank of America (BAC).

Her new position—leading BofA’s global wealth and investment management business—comes as a surprise, since she has been off the radar since Pandit demoted her last September and she left Citi soon after. Last Wednesday, Krawcheck and I had lunch, and she shared, off the record, several big opportunities that she had turned down–because they didn’t “hit the bulls-eye,” she told me. And particularly in this treacherous environment, “there’s no use rushing,” she added.

I got the sense that Krawcheck was poised to decide on something soon–though not this soon. And my bet was that she might start her own asset management company with backing from private equity investors.

So I was wrong about her plan, but I’m sure about this: By choosing BofA, Krawcheck is staking her career on a slow-going turnaround. BofA’s stock has risen from a $3 low to $15, but it’s down from $55 last fall after CEO Ken Lewis agreed, under pressure from the government, to rescue Merrill Lynch. That said, by taking the job at BofA, Krawcheck could be setting herself up for something bigger, which she could hardly achieve at her own firm. That is, a chance to be a Fortune 500 CEO.

Especially in light of the ongoing shakeup of BofA’s board (bucking to pressure from the Obama Administration, the board is replacing its directors), the heat is on CEO Ken Lewis to hasten the turnaround or give up his position to a successor. Along with the news about Krawcheck’s hiring came an announcement that one longtime succession candidate, consumer and small-business banking boss Liam McGee, is leaving the company.

McGee’s departure leaves a couple of succession candidates. One is Brian Moynihan, who arrived at BofA with its 2004 Fleet acquisition and has recently headed the global corporate and investment banking unit, plus global wealth management. He’s newly assigned to oversee BofA’s mighty consumer bank, including its small business and credit card operations.

Another possible successor is Barbara DeSoer, a nose-to the-grindstone operator whom my Fortune colleague, Geoff Colvin, interviewed last November. DeSoer has earned high marks for integrating BofA’s Countrywide Financial acquisition and cleaning up the big mortgage minefield. (Another BofA succession candidate who was on Fortune’s Most Powerful Women list, chief risk officer Amy Brinkley, paid for those disastrous investments and was ousted in June.)

Following all this tumult, BofA has two newcomers to watch closely: corporate and investment banking chief Tom Montag, who came with last year’s buyout of Merrill Lynch and was at Goldman Sachs (GS) before that. The other is Krawcheck. Given her youth–she’ll be 45 in November–and her time off the grid, the onetime most powerful woman in banking won’t have an easy time proving herself at battered BoA. Then again, Krawcheck’s reputation as a champion of individual investors–“the last honest analyst” as Fortune once dubbed her–is in line with the zeitgeist. And certainly in line with where BofA needs to go.

Here’s Krawcheck in a conversation with Elliott Spitzer and Fortune’s Allan Sloan, taped last Monday at CNNMoney’s studios:

The ideal career path may be: reaching the top of the corporate world, then taking time off for family when your kids need you most, and then jumping back into a primo job at a top-tier global company.

Impossible in this dreadful economy? Here’s someone who’s done it. Remember Jeanne Jackson? At Gap (GPS) in the 90s, she built Banana Republic and then went to help Wal-Mart (WMT) take Walmart.com from start-up stage. But after leaving Wal-Mart seven years ago, Jackson was out of the big game, except for board gigs at McDonald’s (MCD), Nordstrom (JWN), and Nike (NKE).

She’s back. Actually, I follow these Most Powerful Women (and Jackson was one, on our annual list a decade ago), but the announcement four months ago that she landed at Nike–as President, Direct to Consumer, reporting to the CEO–was so low-key that I’d missed it. A few days ago, I spotted Jackson’s name and Nike title on the participant list for our upcoming Fortune Most Powerful Women Summit. I popped her an email. We talked yesterday.

“I made a commitment to my family,” Jackson, 57, told me, explaining why she had dropped out for so long. Since 2001, when she joined the Nike board, Jackson actually had talked on and off with chairman Phil Knight and CEO Mark Parker about joining the company. But not until this year, when her son graduated from high school and her daughter accepted an internship in London, at Burberry, did she decide to jump.

She didn’t think the jump would be to Nike first thing. “I thought I’d do something related to private equity,” says Jackson, who has been quietly running her own private equity/consulting business, MSP Capital, out of Newport Beach, California for the past several years. She expected one of the companies she backed “would speak to me.” But nothing did. (Along with “some spectacular failures,” she says, she scored a couple of hits, including Pure Digital, which sells the Flip camera and recently was acquired by Cisco.)

As the global economy tanked, she felt ever more drawn to the thing that she has focused on throughout her career: strong brands. Says Jackson, who was at Disney (DIS) and Victoria’s Secret early on: “In this economy, consumers default to strong brands.” Now, in this new role that Nike CEO Parker created for her, she oversees the company’s global retail holdings. That includes some 3,500 franchised Nike stores, more than 600 wholly-owned Nike and Cole Haan stores, and five e-commerce sites. Some $3 billion in revenues annually travels through these “direct to consumer” channels.

And despite the global meltdown, Nike is performing well. Revenues reached $19.2 billion in the year ended May 31. Profits fell 21% after five years of 20%+ annual growth, but investors have stayed with the stock: It’s up nearly 40% in five years, while the S&P has dropped 20%. The world’s largest athletic shoe and apparel marketer, Nike has smartly reduced spending and layers of management, while selectively adding key talent like Jackson.

Of course, she’s contending with the retail slowdown–Nike too has cut new-store expansion. But in some ways, Jackson is returning to the sort of thing she did inside Gap and Wal-Mart: playing entrepreneur inside a corporation. Last week, she opened the first Hurley/Converse/Nike store, in Orange County, California. The Hurley brand is for surfers and skateboarders and other cool kids. Converse, she says, has particularly broad appeal–from high school kids to musicians to “my mother-in-law, who is 87 years old and wears Converse.”

The family dynamic–usually a complication when executives, especially women, return to big jobs–is alright for Jackson. At least until her son heads off to SMU this fall, she’s commuting from California to Oregon, where Nike is based. Husband Doug, a retired airline pilot, is flexible and always has been. “I could take any job and he would just relocate,” Jackson says. (He has his own passion: cars. He owns the Batmobile–one of four built in 1966 for Batman on TV.)

Jackson, meanwhile, has simplified her business extracurriculars. She quit the boards of Nordstrom and Harrah’s Entertainment, as well as Nike. The one board she’s staying on: McDonald’s. After all, you can never get enough lessons in smart retailing.

Another powerful woman called last week to tell me she’s opting out. “I’m going to do what I want to do rather than what I need to do,” said Julie Fasone Holder, Dow Chemical’s (DOW) SVP and chief marketing, sales and reputation officer

It’s the trend lately. If you’ve been checking into Postcards regularly, you’ve read about my conversations with high-ranking women choosing the good life vs. the grind. Susan Arnold quit the presidency at Procter & Gamble (PG) with not a clue what she’s going to do next. Former Pepsi-Cola (PEP) North America boss Dawn Hudson phoned a couple of weeks ago to say that she’s going to work for a consulting firm three days a week. That gig leaves four days for tennis, golf, family, and board duties. Hudson chairs the LPGA and is on the Lowe’s (LOW) and Allergan (AGN) boards.

And now here’s one of Dow’s top women execs joining the parade. A 34-year Dow veteran, Fasone Holder had planned to quit next year, once she hit the 35-year mark. But when Dow acquired Rohm & Haas – a $16 billion deal that just closed – her bosses wanted to move her into a new post, and she decided now was the right time to go. “My husband retired five years ago,” she says. “He’s been living the good life. And I’ve been working my butt off.”

Now, at 56, what does she want to do? She doesn’t know exactly, but like many women who have climbed high in business, she says, “I’ve had a nice career and now I want to give back. How crazy do I want to go in that space? I don’t know. Do I do something in Kenya or Zimbabwe?”

Via a sustainability project, which Dow started in January and she oversees, Fasone Holder has met some not-for-profit pioneers, including Jacqueline Novogratz, whose Acumen Fund backs entrepreneurs who help the poor in Asia and Africa. (Read Novogratz’s Guest Post, “Building value in the developing world.”) “I don’t know whether my passion extends to Africa,” Fasone Holder says. “There’s need everywhere.”

Indeed. Yesterday on Postcards, in “The job crisis strikes top talent,” I mentioned that not-for-profits don’t seem to be doing a very good job recruiting the high-end talent that’s suddenly available. Nicole Russell, an ace communications consultant looking for work, has found volunteer work difficult to line up. What a missed opportunity!

If she doesn’t turn her talent to non-profits, Fasone Holder says she may join Heidrick & Struggles’ (HSII) new Chief Advisor Network. The recruiting firm launched the network a month ago to place out-of-work execs inside companies that are seeking temporary help. Says Fasone Holder: “It could be an interesting way to work without the stress.”

Well, there’s stress in all work – even in these situations where an exec, through the Heidrick program, goes into a company as a special advisor or interim leader to work on a turnaround or restructuring or special project. But Lauren Doliva, the Heidrick partner who is leading the Chief Advisor Network, notes that it meets the needs not only of companies that seek flexible solutions but also people who want flexible solutions too. “Many executives prefer a ‘portfolio’ lifestyle that will allow them to have personal flexibility, while still contributing,” she says.

Flexibility is a luxury, particularly in these stressful times, and I realize that not everyone can do what Susan Arnold and Dawn Hudson and Julie Fasone Holder are choosing to do. But if you can find flexibility and still have a career, good for you. I’m looking for examples. Please let me know if you’ve found a smart way to keep your career on track and have that flexibility at the same time.

P.S. For more job tips, read Fortune’s current cover story, How to find a job.

by Patricia Sellers

Dawn Hudson spent more than a decade chasing stretch goals at PepsiCo (PEP). She headed sales and marketing at Frito-Lay, the consumer giant’s snack unit. She led marketing at Pepsi-Cola North America and ascended to CEO of that $5.5 billion business.

That job turned out to be Hudson’s ceiling inside PepsiCo, where chairman and CEO Indra Nooyi has put her own stamp on the company. Hudson (who ranked as high as No. 41 on Fortune’s Most Powerful Women list in 2007) left Pepsi in January of last year. Since then, headhunters and others have wondered what big job she’ll land next.

It took Hudson 14 months–of silence, self-reflection, and ducking press inquiries—to decide that her new gig will be at….drum-roll…a firm you might not have heard of: the Parthenon Group, a Boston-based strategic advisory outfit. She’ll be vice chairman, working just three days a week.

What gives? Like a lot of women–and men too lately–who have come close to reaching a pinnacle in business, Hudson, 51, decided that shooting for bigger and bigger jobs is simply too stressful. And not worth the price.

“I was neglecting life,” she says about her time in the Pepsi pressure-cooker. “It took six months for me to realize that there’s some great life out there to be lived.”

Not that she’s idled these past 14 months. She serves on the boards of Lowe’s, the home-improvement retailer, and Allergan, whose restorative medical products range from breast implants to Botox to Refresh eye drops. Hudson got her own shot at reinvention as soon as she exited Pepsi: She stepped up to chair the LPGA–and then whittled her golf handicap to 12, from 15.

A serious athlete ever since her Dartmouth days, Hudson played in five competitive tennis leagues and a golf league–yes, simultaneously–at one point during her time off. “I transferred my 24/7 work ethic to sports,” she says, adding that she paid for it. She developed plantar fasciitis, or heel spurs. “I played through it.”

Her onetime boss, former PepsiCo CEO Roger Enrico, gave her the best advice about rerouting her career: “Roger said, ‘Whatever you do, you’re going to do passionately. So make sure you join a group of people who you really want to spend time with.’”

And Ann Fudge, a former top exec at Kraft Foods (KFT) who later headed Young & Rubicam Brands (and now sits on the General Electric board), was also helpful. “As her career progressed, she fought the urge to overload herself at the expense of her family and personal time,” Hudson says. “Ann told me that you have to follow your gut, take a deep breath, make the call to say no to something. And if it turns out to be the right call, you’ll wake up in the morning with a great sense of relief and satisfaction.”

That’s what Hudson did–but only after considering opportunities in consumer goods and retail. She says she came close to taking the top job at one large company owned by private equity. “But then I thought, what’s really going to be different this time?”

Parthenon appeals to her, she says, because she’ll have the chance to work with lots of companies in lots of areas–strategy, marketing, IT–and reach beyond business too. Parthenon has a philanthropy practice, and she plans to help the firm build a sports practice as well. She’ll start at Parthenon in a month or so. First things first: She promised to take her 11-year-old daughter (the younger of two) skiing in Colorado, and she’s taking “a mystery trip” with her husband, Bruce Beach, who wants to surprise her. (She’ll find out where the trip is when she gets there.)

So much for Hudson’s spot on Fortune’s Most Powerful Women list. Does she care? Hardly. “I’m in control now,” she says. “It’s a different definition of power.”

P.S. Hudson perpetuates the trend: Powerful women are opting out. Procter & Gamble (PG) president Susan Arnold quit her post two weeks ago, one day after she turned 55. Arnold needs to “decompress,” she told me, before she even thinks about what to do next. Former eBay (EBAY) Meg Whitman left business to run for governor of California. (She’s hardly decompressing, though! Read my current Fortune cover story.)

And three execs who used to be the most powerful women on Wall Street–Citigroup’s (C) Sallie Krawcheck and Morgan Stanley’s (MS) Zoe Cruz and Ellyn McColgan–are all without jobs now, while Erin Callan, the Lehman Brothers’ CFO who landed at Credit Suisse, is taking a leave of absence–supposedly to ease her stress. What do YOU think? Will women rise again when the business world gets out of crisis?

Tech companies are rethinking their identities. IBM may buy Sun Microsystems. Cisco (CSCO) is moving into the server market, and also mightily into the consumer space. The latest move by Cisco CEO John Chambers–whose family reportedly owns eight Flip cameras–is a buyout of Pure Digital Technologies, which sells those ultra-simple videocameras. (I love mine.)

Powerful people are busy rethinking their identities too. My  last two stories in Fortune are about ex-CEOs reinventing themselves. One is on the new cover story: Former eBay (EBAY) CEO Meg Whitman is putting her all–including $50 million in personal funds, she ventures to guess–into the race to be California’s next governor. (The Golden State, the sickest state in the nation by many measures, needs reinvention too.)

Before Whitman, I profiled former Viacom (VIAB) CEO Tom Freston, whom we call “The Most Wanted Man on the Planet.” We’re being a little facetious, but since Freston got ousted by the media giant’s octogenarian chairman, Sumner Redstone, in 2006, he’s been in high demand and having the time of his life. Freston is helping Oprah Winfrey start her new cable network, OWN. The first lady of TV is busy recreating herself too.

Bad times are good times to redefine yourself. I recently had dinner with Jim Donald, the former CEO of Starbuck (SBUX), who got fired by chairman Howard Schultz early last year. Schultz retook the reins as CEO and is struggling. (Who would want his job?!) Donald is enjoying his unemployed life. He’s on the speaking circuit, teaching a class at the University of Washington, serving on boards, and is being wooed by Bill Ackman, the activist hedge fund investor, to help him fight for seats on the Target (TGT) board. (That’s a messy matter that Donald might best avoid–my opinion, for what it’s worth.) Meanwhile, Donald has gotten in serious physical shape. He recently won his age group, 50-54, in the Northwest Indoor Rowing Championship. Fame is fleeting, though. The ex-CEO of Starbucks just turned 55.

Others too are deciding to hang it up at that age. Two weeks ago, on the day after she turned 55, Procter & Gamble (PG) president Susan Arnold quit her job. She essentially took herself out of the running to succeed CEO A.G. Lafley (Bob McDonald has long had the edge). Judging from the chat I had with Arnold on that day P&G announced her move, I think she’ll be out of the corporate game for a while. The boss who was No. 7 on Fortune’s 2008 Most Powerful Women list wants to regroup. (See “Why P&G’s president quit.”)

Reinvention is clearly the trend. Last weekend in Arizona, when I was mini-vacationing to escape the New York stress, my hiking guide was a former lawyer who quit the rat race to lead mountain treks. This guy said he’s never been happier than he is now. Two nights ago at a Most Powerful Women dinner, I heard about one lawyer who just became an acupuncurist and another who turned herself into an entrepreneur. She’s selling her inventions on HSN.

This weekend, think about your life. Don’t leave what you love. But figure out who you are and what you really want to do. There’s less shame than ever in losing your job–in failing. Life is a trampoline. Use it to rebound. - Pattie Sellers

by Patricia Sellers

Procter & Gamble (PG) lost its president today: Susan Arnold, a 29-year veteran who drove the company’s high-margin beauty business to $20 billion in sales and went on to oversee all of P&G’s brands, stepped down one day after her 55th birthday.

“My dad retired at 62,” Arnold said, phoning this afternoon on her way to a Walt Disney (DIS) board meeting. “Then he got really sick. You know what? I wanted to get out when I was really healthy.”

Such high-level departures are always suspect—particularly these days as everyone is on a short leash. But this exit by Arnold, No. 7 on Fortune’s 2008 Most Powerful Women list, really seems to be motivated by a personal decision. For years, she’s told friends and colleagues that she would probably leave Procter at age 55. That talk, of course, spoiled her chances of succeeding CEO A.G. Lafley, who has told me that he views her as courageous and unusually innovative. Lafley, who turns 62 this June, is expected to retire before age 65. As we at Fortune have been saying for a while, Lafley’s successor will likely be Bob McDonald, P&G’s chief operating officer.

Arnold, who is on the board of McDonald’s (MCD) as well as Disney, has been a prime target of recruiters. Now she’ll be in their sights more than ever. Though she’s likely to duck their calls, at least for a while. “I’m going to take some time to decompress,” she says, adding that she’s looking forward to spending more time with her two kids, 16 and 13. Arnold, who is gay, raises the children with her domestic partner. And though she won’t talk about the challenge of being a gay leader in corporate America, it clearly has affected her thinking about her career. Will she eventually go for another corporate position? She insists she’s not sure. “I’m flexible,” she says.

So goes another powerful woman, adding to the so-called “leaky pipeline” problem in the corporate world. To which Arnold remarks, “Sorry about that!” In Fortune’s Most Powerful Women issue in 2007, I featured six women “One Step Away” from the CEO position. Besides Arnold, what’s happened to the rest of them? Morgan Stanley (MS) co-president Zoe Cruz got fired by CEO John Mack late that year and hasn’t landed a new job yet. Bank of America (BAC) chief Risk officer Amy Brinkley is struggling to shore her company as well as her own legacy. Avon president Liz Smith is on track to succeed CEO Andrea Jung when she retires.

Meanwhile, Schering-Plough (SGP) EVP Carrie Cox, who heads the global pharmaceutical business, woke up this morning to find her company in a $41 billion merger deal with Merck. Only one powerful women in that “One Step Away” class has moved into a top post: Ellen Kullman, now CEO of DuPont.