I too am looking to put together a small kit to keep under the backseat or in one of the rambin's. I've looked at smaller ones in the stores and feel like there is just too much stuff I'd never need, plus I have a ton of duplicate tools at home. I'm just going to get a notepad and go around the truck writing down sizes of various fasteners I may need to tighten/remove if the event arose and I was away from home. Then I will probably pick the appropriate wrench and socket for each size, along with a few screwdrivers, hex keys, and torx bits. Things like tape (electrical & duct), zip-ties, small can of penetrating spray, hammer/mallet, and some disposable gloves are also good to keep on-hand. I'll post back here once I come up with a decent list to see if anyone has anything to add that I missed.