- couple bottles of water (helps driver and can be used as short time solution for any liquid in truck, except for petrol)
- tool roll with wrenches, grip pliers, small break bar (literally - its like 1.5 palm)
- fire extinguisher (never go out without one)
- tie-downs
- hi-lift & hi-lift recovery kit + 20' towing strap with hooks
- assortment of electrical tape, duct tape, small roll of assorted silicone hooses (about 15$ at your local autozone)
- shop towels, bunch of vinyl gloves, toilet paper roll (hey, you never know)
- spare clothes, blanket (and again .. must be ready

)
- first aid kit
- CO2 tank and accugauge
- huge X shaped wrench for wheel lugnuts
- DeLorme maps
- GPS, cell phone, FRS (when i can remember about it)
- huge rain poncho
- signal flares
- breaking glow bar (you know, one that you break and it glows for like 10 hours)
- waterproof matches
- small swiss toolset with all them knives, pliers & etc.
and usual stuff like camera, food, blah blah.
Now there will be ARB joining the line
Yes, you can tell i am freak of nature, carrying all this stuff. Need to add spare fan belt, though. Keep forgetting about it.