A spare tire, two cans a rust-proofing spray paint, brake parts cleaner, two full-time 4WD drive slugs, a Motorcraft box full of bolts, screws, nuts, etc, an axleshaft for a 1979 Quadratrac Jeep Wagoneer, two cargo panels, a tool bag, and numerous trim parts for the exterior.
pretty standard stuff, toolbox with a large assortment of hand tools, antifreeze since my poor car has a leak that I have yet to take care of, extra oil & filter for the next oil change I intend to do, a mediumish bowie knife, bungee cords, a tow strap, spare tire, wheelchair, bottled water and changes of clothes for both the kids.
Absolutely nothing, except what came stock (spare tire, subaru screwdriver, etc.). I just have a few things in the glovebox, and in under the armrest there's some gum and a pen, an audio jack, and some spare change for when I see the lochness monster.
I'm pretty a**l about keeping my car clean... lol.