What info should be exchanged after a car accident?
Are there any cops out there that can answer this one? I know the obvious is name and phone number, but what else? How much do you reveal with out revealing too much?

Oh and here's a tip I picked up that is related:
Keep one of those one-time-use cameras in your car at all times. If you are ever in an accident you will always have a camera to take pictures immediately after the event.

Oh a related note: I had a one-time-use camera in my car for this very purpose, but I couldn't resist the chance to take a picture of a movie theater billboard that read...
BOOTY CALL
NOW HIRING

I've been considering sending the picture in to Jay Leno to get a laugh on tv.