Anyone doing no-poo shampoo method?

I'm becoming terribly sensitive to all hair-care products, including shampoo. Everything seesms to make my scalp break out in sores. I am thinking of using the no-poo baking soda/vinegar cleaning method. Thing is, I have to go to work every day, so I have to have clean hair. Is it o.k. to do this every day? I know the whole point is not to wash your hair every day, but I can't go to work with greasy hair. My hair is short, so can't pull it back in a pony, and besides, I'm in a professional office.