I have a medium sized civilian style backpack in a subdued color. Inside it I have a USGI poncho, a heavy duty survival/space blanket, a small green/brown tarp, two pairs of socks, a pair of gloves, a USGI canteen and canteen cup, a decent first aid kit, a bag of dry cotton balls, a bag of vasoline coated cotton balls, an Aquamira filter straw, one freeze dried meal, a Woodmans Pal, waterproof matches in a water tight container, a can opener, a small serrated blade pocket knife, a small flashlight, a Swedish firesteel, a compass, a Tennessee Atlas and Gazetteer, 100 feet of para cord, a small fishing kit, a pair of cheap binoculars, a Gerber multi tool, a small AM/FM/SW radio, and some plastic eating utensils.
That is what rides in my service vehicle with me everyday. I also have a Dead On Tools Annihilator wrecking bar that I keep stuck in the drivers side door that I would pull out if I had to ditch the vehicle. I also usually have my Taurus PT709 with a spare magazine as well.