I have so many that you would need to ask my wife to get the full list.
The light switch thing, yep.
Underwear boxers folded and stacked by color.
Socks tied, grouped by color.
BDU Pants rolled, grouped by color.
Shower gets squeegee and towel dried every day as I'm getting out.
Urinate sitting down because urine splashes back on your legs, the floor and the wall when you stand to piss like some sort of animal in a field
I also have rituals/systems for almost everything. It drives my wife and close friends crazy, but I have to follow the system as designed or I get uneasy... Everything has a system, tweaks that I have made to daily activities that increase efficiency, prevent mistakes, prevent me from forgetting things, prevent me from misplacing things. If a single thing happens to knock me out of my pattern, often I will mess up other things that were precluded by that set or series of motions.
I'm very irritated by anyone doing things that is not the way I do it.
I have more micro mental problems than anyone I know, sort of a joke but my family compares Sheldon Cooper to me very regularly... But he's less severe.