It’s a good thing I’m heading to London this month since I just lost a button on my favorite Brunello Cucinelli jacket. A needle and thread is hard to find in a jeans-and-T-shirt world; my local drugstore sells mostly useless assortments (orange?). A good hotel, however, understands the art of the sewing kit: a discreet envelope or fitted box with a sliding top, colors I want, and—a thrill every time—threaded needles. I squirrel one away every night, hoping for another. If it doesn’t come, I’m not above filling my pockets at the housekeeper’s cart.