I really love the smell of a woman's hair, even if it hasn't been washed and is a little 'natural' smelling.

And I agree about the smoking stuff. I was dating a girl in HS, and she had nice smooth black hair. The summer after HS, she took up smoking. I found that as much as I was attracted to her physically, I had to overcome a gag reflex to kiss her. It was easy for me to find somebody I liked better once she started smoking, and we broke up within about six or eight months. She just wasn't a pleasure to be around any more.