Moldy wrote:

I always keep a window breaker / seat belt cutter....

Almost all cars have a glass break equipt ;) the driver head rest comes out and the "pointy" tip is for breaking the window.... But no seatbelt cutter.

Flashlight - added
Tire pump - I have one somewhere around the house, untill I find it, I have a can of fix-a-flat with the spare in the trunk.