My hair takes hours to air-dry, somehow, so I don't think I could ever arrange enough time for it to dry in the mornings before leaving. I remember standing outside in winter with a wet head, though! Not something I'm eager to repeat either.

For some reason I just hate having hair where the only way to reset things is to wet it entirely. I think it's also an issue of having low-flow showerheads, which means it takes a good long while and lots of finger-coming in the shower before my scalp even gets wet.