You might be a survivalist if you rationalize never washing your vehicle because you don't want to waste the well water at home, the $5-6 it would take to go to the car wash could be used for canned goods, beans (prep of choice) or you figure if you're truck looks old and dirty people won't think you have anything worth taking.
You might be on your way if you can't go past an auto parts store without thinking, hmmm...what else might I need to have on hand besides all the hoses, belts, fluids, brakes,spark plugs and electronic parts for this thing. I'm worse about this than DH is. All I've ever had is older vehicles and don't like braking down without the parts (and tools) handy.