All your advices are great, and some of them I've tried before. I just forgot to say that we ride (not drive) our bikes along the coast so we swim in the sea everyday, and there aren't showers on every beach. And the main problem is the salt that greese my hair.
You helped me finding the solution. I think I'll cut my hail a little bit, and make a hair party I'll persuade my friends to make me plaits (each one for 1/2 an hour ) and I'll try to find some small samples of hair balsam.

I have question for European divers...
could you recommend me some not-so-expensive web site that has women bike clothes. Here I can't find myself a normal short-sleeve shirt that looks "girly" I buy myself small sizes of "man-shirts". I think, no one in our stores ever heard of bike skirt TE has great things but the postage costs are quite big cause I'm over the ocean. I'm waiting to finish my colleage and to get a permanent job, and than I'll afford myself cute TE things.