Here in Brazil it's very common to have several showers a day. I, for example, take two. The first is when I wake up, before I go to work, and the second is when I get home from work. I wake up at 6.30am and get home at 8pm.
I think you're thinking about it being bad for your skin. I think there's some validity to this, but I can't be certain. Any dermatologists in the house? Moisturizer seems like a good idea.