Little trick I picked up at work. I'm a cable tech so I get rained (and snowed) on pretty frequently. At work I got one of these:


It's the plastic sleeve PCMCIA cards come in. It'll hold an ID, credit card, insurance card, registration and a couple $ bills securely. And while its not waterproof it is fairly water resistant, especially in a pocket.



Just a tip to keep your IDs together. I use it instead of a wallet when dressed down / working.