In glovebox:
- registration
- maps (why do I have to carry 10+ maps just to cover the Bay Area? Oh for the $$$ to buy a Garmin StreetPilot . . . )
- owner's manual
In door pockets:
- DME relay, red round relay
- a little camera (for UFOs, solar eclipses, and fender-benders)
- my trusty Fisher "Space Pen" (when the car sinks underwater, I can write my final thoughts)
- Swiss Army knife (used to live in my briefcase, but with current airport security it had to find a new home)
- cellphone stuff (car charger and headset)
This excludes the miscellaneous small change, jetsam and flotsam that I periodically clean out.
Carrying a firearm is not a practical option for private citizens in California,
AFAIK. Even if it was, I don't know if I'd carry my Glock 19. I think I'm more at risk from housewives in SUVs than from armed criminals, and I suspect the gun would prove of most use to the guy who steals it from my car. Then again, I don't have the option so it's hard to say what I'd do if I did.