I usually shave when people start complaining that I have too much hair. I don't really care about my hair.
I have to work at a place where it is required that I shave on a near daily basis, so I typically shave when I see the hair becoming dark in the mirror.
Daily, but in intervals! Arms one day, leg's another, face another (Yes, I get facial hair...for some reason)
I have to shave almost every week. My facial hair grows ridiculously fast right after shaving, but once I get like a pencil mustache and short beard, it slows to the point where I won't have a full beard until maybe 4 months or so. Kind of wish I'd grow a full beard at a normal rate or not one at all.
I shave maybe twice a week. It's just so itchy. Feels like my skin is being clawed by small children. Please don't ask why I know that comparison is accurate. #MissingNo