This might be an interesting discussion. Purely academic.

If you had a tool bag about the size of a shaving kit bag (i.e., about the size of a small loaf of bread), which could be transferred from vehicle to vehicle, what TWELVE hand-tools (wrenches, screwdrivers, and the like, but not supplies) would you have in it? Intended use is while on long trips on the road in a typical car/truck, so items requiring 110VAC or an air compressor to operate or charge aren't to be considered. Items which require batteries or 12VDC (i.e., plug into the cig-lighter) are okay. All hand-tools listed must fit together in the bag as described with the bag zipped shut.

What you would carry is needed here. Why you would carry them would be nice, too, if you feel like elaborating.