I do, too. Not from OCD or anything other than seven years in the army. I think a well pressed shirt remains part of dress and deportment, along with a good shave.I find ironing calming & rewarding
Towels and such, a minimum of once a week and usually twice.
Bed linens, every two but pillow cases weekly. Dog bedding on the same schedule, and they shed a lot more than I do, at least so far..