My old boss laughed at me for buying a $90 stud welder, guess who needed it on a Camry last Tuesday
My old boss Dale at the collision place over on Rte 9 always joked that a stud welder was a waste of money for a small operation like ours. I bought one anyway for $90 because I hated drilling holes in trunk lids. Last Tuesday a 2016 Camry came in with a dent right on the body line and I pulled it clean in about 20 minutes with two studs. Dale came by to borrow it the next day, so what's the tool you got made fun of for buying that ended up saving you?
Bought a cheap borescope off Amazon for 30 bucks and my buddy at the shop told me I was throwing money away. Used it to find a dropped socket in a cylinder and to check a clogged cat without pulling the whole exhaust apart. He borrowed it twice last month. Small tools pay for themselves fast.