How often do you brush your teeth?

Once in the morning, once at night.

Shave?

Daily, but I normally use an electric shaver so it's hardly a chore. 10 seconds and it's done.

Wash your face?

A couple of times a day maybe

Comb your hair?

Depends how messy it gets, how often I go out etc. Once at the very least, usually a few times throughout the day.

Trim ear/nose hair?

Never, so far

Clean your ears?

Every day as part of shower routine

Shower/bathe?

Shower every day. More than once if I've worked up a sweat, done exercise, or whatever.

And can you think of other normal grooming habits?

Picking your nose? Couple of times a day