My father once used hairspray to dry out a distributor on a vehicle that wouldn't start after the engine got wet crossing a flooded creek.

Baby powder will quiet down a fan belt that squalls.

Hot glue sticks and a bic lighter for temporary fixes to smaller holes in a boat or canoe.

Kotex pads in the first aid kit for wound compresses/bandages.

Everyone knows that you can urinate in an over heated radiator of a car low on coolant when antifreeze/water isnt available.

Rubbing an apple core on wiper blades will clean the blades and keep them from squeeking.