The gun I don't keep in the car, usually on me. I'm afraid someone will break into the car & take it.
The TP, $$ & deck of cards are stuff I didn't think about though. Good ideas!
What is a 12 volt air inflator & what would it be used for?
To air up a tire. It's not a bad idea to keep a tire patch/plug kit, too.
Space blankets don't take up much room.