I finally get why my old boss at the shop in Gary always kept a roll of masking tape in his back pocket
Went back to that shop on Route 20 for the first time in 9 years and saw the new kid taping off a fender with the same 3M 233+ I used in 2015, and it hit me that some habits in this trade just get handed down like tools, so what is one small thing your old mentor drilled into you that you still do every single job?