I have long hair.
I kept my hair short up until 10th grade. I looked in the mirror one day, and realized that I looked like a complete tool with short hair. All of my facial features looked completely out of proportion (nose, ears, etc), so I stopped getting regular haircuts.
Four years or so later, I have long hair that I always keep in a ponytail unless I'm showering or sleeping. On that note, I always keep it very clean, and I comb it as well. I'm not a "dirty hippie" (well, at least not dirty, orz)
I'm thinking about getting a haircut just for a change of pace, but I can't think of any other style that would look reasonably good on me other than what I have now. My hair is far too thick and wavy to do anything with, without straightening it first. And even then, the thickness is a problem. I wish I would go half-way bald so it would be normal ._.