Extra tools, zip-ties, Extreme tape, air compressor (Slime brand) with plug kit (Miruni Earth Stick), zip-ties, rags, test light, volt-ohm meter, zip-ties, siphon tube, long nose vice-grips, cork screw, bottle opener, hack saw blade (0.026" feeler gauge), zip-ties, Leatherman tool, 6 mil black nitrile gloves, LED headband flashlight, wiring diagram, zip-ties, hex drives, spare bulbs and fuses and relays.
Did I mention the zip-ties?