I run hot water on my head everyday, but I only use shampoo once every two weeks or so. I don't have dreads, but my hair is pretty long. Your right DancerAnnie, when you only wash every week or two your hair looks really awsome when you do. Many people ask me whats my secret, but when I tell 'em to stop washing their hair, they just laugh.
The last time I washed it was about 2 months ago... I suppose I just got annoyed at spending money I dont have on things I dont need. I plan to never use shampoo again, I use abit of jojoba oil on the ends though, because my hair is basically destroyed from over-bleaching it. Surprisingly though its actually starting to look healthy and shiny again =) yay for "natural oils", or grease as I prefer to call it, yummy hehe...
Almost everyday for me. I hate the feeling of a grubby scalp. Though I've wanted to ease up on my shampooing I really need something to deal with my scalp issues.