What an excellent list...after hearing about people stranded in their cars (for days at a time) I now have many of those things too. Always better to have them, even if you never are going to use it. I would add:
- Keep a cell phone on youself
- Seatbelt cutter/window breaker device
- Give people at home a note with your driving route.
- jump cables
- small bottle of windshield washer fluid
