Buy 2 pairs of safety glasses. Keep one pair in the truck. Keep the other set on the bench. Put them on when you are working on the truck, take them off when you are done. There are far too many things on the truck that can cause you great harm to not use this piece of safety equipment. Another consideration is gloves. If you find yourself doing much wrenching, buy yourself a set of gloves. I would never have believed how much of a difference they made until I tried my first pair. No more bloody knuckles, no more pinched fingers, no more burns from touching the hot exhaust by mistake. No more grubby hands at the end of a job, and no more dry and cracked hands from all the solvents. About hand cleaners. Lava Soap and Goop. I prefer Lava as its nicer on my hands, and is extremely effective. It's cheap too.