I was soooo bored that I took 5k rounds of 40 S&W and ran them back through a 100 round shockbottle to both gauge them and to double check my count listed on a sheet in my ammo boxes.

I put vinyl caliber stickers on my ammo cans...that took all of 5mins.
I cleaned off the work bench...as in Murphy's Oil and a rag...now that is being bored.