Staying in a hotel is sexy. A good hotel, that is. No matter how humdrum your life is, when you dress yourself knowing that in a few hours you will become a mysterious and sophisticated stranger strolling across some beautiful lobby, people can’t be sure you’re not some hot shot entrepreneur, oil tycoon, or secret agent. It’s fun, and feeling like the world is watching is seductive. You preen a little. I know you do. I’ve...