My hair is completely straight and now just passed shoulder-length. I'm planning on keeping it at small ponytail length while I'm out on the trail. I also planned on bringing, as someone else mentioned, one of those little folding brushes. My hair in tangles drives me nuts. My hair also gets super greasy super fast. I can't take a shower at night, because by the middle of the next morning, it's grease again. I figured, since it rains so much on the trial anyways, I would keep a travel-size bottle of shampoo and some soap in the waist belt of my pack and wash in the rain! Gotta see the silver lining in everything, even days of non-stop rain, lol...