CHILD'S PLAY Children need places where they can make noise. Every summer we return to Forte dei Marmi in Italy—it's kind of the Hamptons of Florence. We rent bikes and go to the beach. At night there are games in the main square for kids. And I always bring back presents. Whenever I'm in the States, I stock up on Gap Kids. I always shop during my last day in town: I buy two or three duffel bags to fill up, then head straight to the airport and check the bags.
• WHAT HE'S CARRYING I prefer a suitcase that opens in the middle, and I never check my personal luggage—so it must be small. If the bag is too big, everything's a mess when you open it. I usually carry on a soft Gucci satchel or a leather Louis Vuitton case without wheels. (There's no class to a bag with wheels, no matter how many LV 's it has on it.)
• NEVER LEAVES HOME WITHOUT. . . Of course, I take a watch. I collect many types but I wear only my own designs; right now, it's the new No. 7. But I sometimes come home without it, because I've given it away.
• TOYS I'm never without my cell phones (yes, that's phones, plural). One is a Sony Ericsson—the coolest phone—and my Nokia Communicator, which holds my schedule. I bring a DoCoMo phone when I go to Japan.
• MORE TOYS I check my e-mail all the time, so I pack my little Sony Vaio laptop. I have to confess I always bring computer Scrabble on my trips. I love it because you never play the same round twice. My new favorite game is Who Wants to Be a Millionaire? I've won three times; a check for a million dollars with your name on it flashes on the screen.
• THE EXTRAS As for toiletries, I love Issey Miyake cologne; I've worn it for years. Rembrandt whitening toothpaste is the best. And I prefer Aveda hair gel, but I don't bring a comb or brush. I just use my hand.
• PRESSING MATTERS Because I bring so little, I always have all my clothes cleaned and pressed. Often, when I return home, I have no dirty laundry. I bring only things I love—and need.