Once, right after my shower in the morning unless I do something that gets me dirty, then twice. BUT, I usually don't do anything strenuous or dirty.
Sleep clothes to work clothes.
Work clothes to sleep clothes.
It's normal to have changed them twice per day, but sometimes, we have to change 3 times,as when they got dirty or we need to have a new ones.
Twice. PJs to day clothes, day clothes to PJs.
At least twice
I don't, I put a fresh set of clothes on everyday, and when I go to bed, I take them off, However if I get unusually soiled I'll change, but that's my usual mode of dressing. Why should I change more often?
0... All natural