my truck is a chevy s-10, not a full size, and I do not have any credit cards. I think the real trick is to keep the money hard enough to get to that you will not spend it because temptation is hard to resist at times and impulse buying sometimes hard to control.

I am on the fence about charger/inflater things, and my truck has never left me staranded, so I just have been lucky I guess. At any rate, I am more happy that I was prepared than bummed about $100...