Blanket, 3 tarps, mattress pad, flashlight, tape measure, 1 1/2 complete sets of sockets & socket wrenches, adjustable wrench. Hammer. Big fucking hammer. Jumper cables. 2 sets of jacks. Jack stands. Tow rope. 2 heavy duty ratcheting tie down straps, multimeter, screwdrivers, electrical tape, electrical contact cleaner, wd40, funnel, knife, another knife (never know when I'm going to come across a road kill deer that's fresh - need to be able to cut those back straps out quickly.) And, a large assortment of other crap that I'm not quite bored enough to think about - spare car fuses, some fishing tackle, spare tire, at the moment, I also have a heavy post pounder in there. (And the list goes on and on.) Grand Caravans (at least my current model) have quite a bit of storage under the floor - I have it completely packed with tools & stuff.