HELP - Party Theme Idea

[OXguy]

Freshmen move in is coming up, and I'm the social chair for my fraternity and have to throw a party. I'm having trouble coming up with a theme. Here's my problem: I don't want people to have go all out to dress up, necessarily, because it will be the first day after move in and not many people will be prepared for that. I do want a theme though. It could be centered around the drinks or really any theme that one doesn't necessarily have to dress up for. Please Help!

[Drolefille]

Is it only girls that do Traffic Light parties?

[33girl]

How dressy do people usually get for parties at your school?

[deepsouth]

I think he was talking about costume-like dress up, as in some themes would require a different set of clothes than one might have readily on hand.