It's true, you know. "Why not" is definitely a slogan for an interesting life. So wear the Why Not V-Neck tee ($24), throw a little caution to the wind, and have some fun. Just, you know, use discretion. Saying "Why not?!" when your friends want to embark on a bar crawl and end it with karaoke is one thing. Saying "Why not?!" when the creepy, leering guy sitting in the corner of the karaoke bar wants to buy you a drink is another.