By far, rolls of tape.
It seems I never have one in my bag and I have to schlep out to the truck and get a new one. 5 minutes later I'm like " where's my damn tape?"
I don't misplace the 10 in 1 tips cause you can't buy them (easily)
My brain. I set it down somewhere back in '78, and haven't seen it since.
LOL! those 70s got me too!