I keep the Bersa with me on occasion, locked in the glovebox. I don't have a permit, but according to a coworker who was in law enforcement for 15 years, this is legal. At least, I know it's the way she carries herself. <img src="/images/graemlins/wink.gif" alt="" />
I do have a Bic or two in my kits (and a dedicated candle lighter in the home kit), but I do need some other fire supplies...
The canned stuff I have has pop-off tops, but a can opener would be a wise choice I suppose!