I always have at least one knife on my person (usually a multitool and a seperate knife), but I recently had added those little "Resqme" keychain gizmo's to each memeber of my families cars. I attached the tool to the top pivot of the seatbelt with a heavy plastic cable tie on the driver's left side so it's always accessible. This way there is a seat belt cutter and window punch right there. Just pull on it and the mounting bracket stays attached and the tool comes away in your hand....When I put them in (especially in my kids cars) everybody thought I was nut's. This kind of thing goes to show that even a little gadget like this could be a lifesaver.

Evan