never wheel alone, you may be walking home.
my addition to bds5's list;
means to repair/fill a flat, or a thick walled innertube (oba, co2, hand pump, cig lighter pump, ect...)
basic hand tools
small sledge hammer, like one of those 4# ones. i have used mine for just anout anything.
mapp/propane torch, built a campfire for light/heat once while highcentered and drunk at 3am alone.
recovery gear of your choosing
bow saw/small chainsaw.
some of the items would be totally useless for some trips and most of your gear would depend vastly on the intentions of the adventure. however i think most would agree that means of recovery is necessary.
Ratmonkey donation page. all proceeds will go to his family.
it's not much to look at... but it's mine.
5.2lswap, metalcloaks, bedliner, tucked belly, d60's, soon to be nv4500 and d300.