I'll trade my shirt for your pants

A Great Idea:

So I'm reading the newspaper, and some lady mentions she was at a "clothing swap." I had never heard the term, but presumably, it's an event where you bring a bunch of clothes you're tired of, and everyone trades some clothes. (am I right, fashion-conscious folks?)

But how about this idea: You don't bring any extra clothes. You just trade what you have on. Furthermore, you may not leave wearing anything you came in with. (okay, your underwear's fine, i mean, otherwise that's kinda gross) But wouldn't that be more fun?

A further variation if you're feeling really crazy: all trades are mandatory.