Here's what I had to do to please my Virgo perfectionist OCD husband whom I just divorced after 30 years:

Vacuum in straight lines only - no zigzags

Towels must be stored with folded side facing out

Light switches must be in down position when off. Can't have them opposite: up position, but light is off if two switches (upstairs + downstairs switches both work for hallway light)

Check iron when leaving house even if hasn't been used

Mow front and back lawns same time (vs next day or so) so grass height is even

Mow with wheel marks in same line when going back and forth.