AAA card, flashlight, seatbelt cutter, window hammer and a fire extinguisher. Anything else is useless, IMO. If it isn't on fire or sinking in a lake, I'd rather just have it towed home and fix it right. Very rarely is it going to be something that can be fixed enough to limp home, anyway. I don't half-ass break things. I shatter transmissions, burn up ignition parts, and puke coolant all over the street.