Travel, of course, is about the joy of discovery. Vacation, though, is best spent re-discovering. I was reminded of that fact this week when I returned to New York, where I lived for 10 years. When you travel to places for the first time your time is often spent running from one tourist spot to the next, taking tours, and exercising your brain. Sometimes, however, you just want to feel the comfort that only comes when you know a place well.