Serpintine belt (absolute must-have!)
A bottle of every fluid: Power steering, Brake, engine oil, transmission, radiator.
Tail light bulbs, headlight bulbs.
Toilet Paper (you never know when the need may arise).
Hacksaw (ever crushed an exhaust tailpipe closed?)
Large trash bags (great to lay down on while working under the Jeep or just to hold dirty broken parts).
And tools to work on most anything.
2008 2-dr Rubicon, auto,
RK 2.5" Max Travel lift, Fox 2.0 shocks, 37" Nittos, 5.38 gears, River Raider skids, Warn VR8000-S.
RIPP Gen 2 Stg 2 Supercharger.
Bunch of other junk.