(*Embarrassed to post this picture, because I see I have some wrenches where the claws are going different directions. This must be corrected….)
All tools have to be wiped off of grease before being put away.
If I'm missing a socket, it drives me nuts. I'll search until I can't search anymore to find it. The ones I can't find, I have to buy another one to match. Even if I have 14 9/16 sockets in various drives, I have to have the one I lost back.
On my combo wrenches, I have 2 of everything. The Sears Industrials go on the outside, the Sears Professionals go on the inside. The Blackhawk ratcheting
wrenches are inside of the Gearwrench ones.
I have to buy things in even numbers. 10 2x4s, 4 sheets of plywood, 2 boxes of nails.
Like others have mentioned, extension cord abuse. If somebody borrows a cord from me, and returns it not coiled right, or heaven forbid, wrapped up by using their hand and their elbow

I have to lay it in the sun and let it relax and coil it right.
And a million more things….