1000

I've recently rediscovered a game called 1000 Blank White Cards. It's actually a game I've never played, but one that I've been interested in since I first heard about it.

Basically, its a card game played with blank 3x5 notecards cut in half. There aren't really any rules, but its generally played with 3 to 6 people. And, as you play, you draw your own pictures, rules, point values, etc onto the cards.

I'm really doing a horrible job of describing it, so instead, I'll just point you all to two sites that do a slightly better job and give examples.

Site 1 and Site 2.