Be sure to visit the schools that you're seriously considering. There are just some intangibles that one can only get from actually going there and taking a tour, sitting in on classes, talking with professors, etc.; the experience can often be enough to convince one that the school is an absolutely perfect fit, or to completely cross it off the list. I can't tell you how many people I've known who never set foot on their campus prior to move-in day, and it baffles me that someone would blindly commit that much money and the next four years of their life to somewhere they've never been to.