I'm surprised no one mentioned this. All I do is allow plenty of time to ride and not get too sweaty and all that as it messes up my hair more. I just carry a hair brush personally so that I can brush it when I get there. Also typically I just wear slacks for simplicity and used the bands around the bottom of the legs. I have one of those hardcase panniers that has a dinky lock but I keep my purse and sweater/jacket in it while riding as well as anything else. If I'm going to school I throw a shopping pannier on the other side and put my backpack in it.