Aero hair shaving?
Slowtwitch wrote an interesting article about leg shaving and its effect on aerodynamics. It turns out that the most aerodynamic setup is not fully shaved, but rather partially shaved in a certain manner. It’s odd looking, but an interesting study about turbulent flow boundaries. I’d suggest reading the whole article to understand all the details, but the short of it is that you should leave a stripe of hair down the front and chevrons across the backs of your calves for “significantly reduced drag.” Full article here.