Do You Have a Survival Go-Bag?

I do, keep it in my truck at all times.

camel back setup
food
rope
twine
fire starters (multiple kinds)
clothes
space blankets
Basic Med kit
1 extra 30rd mag for my ar15
2 extra 8rd mags for my 1911
1 extra 16rd mag for my XD 9mm
Camp Knife
Hatchet
Machete
small tarp

It's enough to at least get me home or last me a day or so.
It is also in a basic wal mart hiking back pack


edit -
and a multi tool that has eating utensils, knife, fork, can opener, cork screw.