A thread for sticklers

@fmf said
What are you most nitpicky or fastidious about in your everyday life?

I always try to use other posters' full screen names when I post because I don't like to shorten them and I never use nicknames.

Years ago there was and still is a chess player we named The Stickler. He was an odd one, big pear shaped body, western style shirt (I wear them, I think they're sharp) pocket protectors with 10 pens...both pockets. He was good at finding defenses in hopeless positions, and then still losing. LOL