Here is a list of the gear that lives in/on my truck all the time......
spare belts/filters
basic tool kit
spare h/light and d/light globes
fuzes
cyalume sticks (red green and blue)
disposable overalls
orange safety vest (so as not to get run down changing a tyre, we don't wear 'em shooting here)
Glock folding shovel
small axe/large Fiskars axe
folding bush saw
tread plates
various folding knives (no fixed blades due to silly laws)
cam cream
water/food for about three days
Milbag filter/water purification tablets
thermal blanketx2
large tarp
hootchie
hexi stove and fuel
small fry pan, steel canteen cup/canteen
concentrated disinfectant
basic (to match my skill level) first aid kit plus additional wound dressings
snatch strap
3000kg drag chain, hooks and shackles
Wallaby Jack (on external rack)
Winching kit for the jack
Wallaby Jack adapter (connects wallaby jack to bullbar or rear bar)
small compressor
toilet paper, several rolls and single packets (beats the hell out of leaves and sticks)
matches (in bulk) including waterproof/windproof type
Para (550) Cord x 50m
Hootchie Cord x 100m
cheap nylon 6mm rope 50m
Couple of torches and spare batteries (Sterion Torch in charger when on a trip)
Wet/Antiseptic wipes (for when bathing is out of the question)
Antiseptic soap
eye/ear protection
condoms (my other 1/2 looking over my shoulder noted these were out of date)
playing cards (a sign of a man who has been up "that" creek without his paddle in the past...!!!)
M65 Jacket, gloves, balaclava, socks. Belleville boots
towel
pillow
sleeping bag (US modular sleep system complete)
tubeless repair kit
100 CDs (these complement the playing cards when stranded, other 1/2 just noted music selection was crap....she has been directed back to the kitchen)
Duct tape, insulation tape and cloth tape
a second spare tyre and rim
telescopic fishing rod and reel plus associated gear
bush shower bag
lots of large plastic bags
unfilled sandbags
Eagle Becker pack
riggers gloves
nomex gloves
insulated beenie
gortex jacket (British DPM)
fire extinguisher (cage mounted)
canvas swag
Magnesium fire starter jobby as well as one of the Swiss "firesticks",
jumper cables
Which extension strap
tree trunk protector
chamois (cleaning windows and also makes a useful "towel" for me if I need to pack out)
candles (both full size and "tea light" kinds)
army KFS set
lighters
zip ties (and something that looks remarkably like flexi-cuffs )
black window socks (pull over the upper door frame to create a shade effect, lest you sleep with the windows down without getting attacked by bugs/squitos)
EPIRB
I also have the full length steel roof rack, I don't leave in on all the time though. This is great for carrying bulky (but soft) items like tents, sleeping mats etc. It is the natural place for water and fuel Jerrys. These only come out if I am planning a trip away as opposed to be "caught out" by circumstances.
In summer if I am leaving town at all I carry MUCH more water than usual. Here on the east coast fuel is not a problem (given the range my dual tanks give me) but water can be.
Sounds like heaps I know, but it all resides in the side compartments of my "Crusier", under the back deck and in a medium size sealed top plastic tub in the cargo bay.
Due to the laws out here there are no firearms/ammunition carried except when I am going away hunting or to the range
Andy
