To keep spare serpentine belts in the trunk and know how to install them with tools you keep in the vehicle.
How to build a lean-to in the woods and insulate it with leaves or moss. How to use sweet gum twigs to brush your teeth. How to use bay leaves as toilet paper and how to wad them up and clean your hands with them.
You've seen my trunk. Only problem is the tensioner goes bad before the belt these days.
Had the occasion to help a guy stuck by the side of the road with an S belt just this week. It was a Cummins diesel and honestly I don’t know how you do them alone. PITA.