I've never dyed my hair. In college, I put a temporary, two-week tinting mousse in my hair that turned my natural highlights red, but that's as far as I've gone. Mostly, I haven't dyed my hair because I really like my hair color. Also, my hair is very dark brown so I'd have to lighten it for most hair color to do anything more than just tint it some. Besides, it seems like a lot of work to keep up a fake hair color.
Yesterday, I linked to piece by a fashion blogger who is starting to get grey hair in her 20s. I also have some grey hair (most of which I suspect is due to constantly hitting the same part of my head on my bunk in college since that's where the grey appears). It drives me crazy when people try to plunk a grey hair if they notice it. Please leave my hair on my head. Thank you. I'm not sure why this is an abomination, but many women think so and wish I would just dye my hair since I'm too young to have any grey. (I suspect more women have grey than realize it since they are constantly dying their hair).
I'm considering doing a red tint from temporary color again and someday tinting my hair purple, but not to cover the grey--just for fun. Most of the hair dye users I know fall under this just-for-fun category. They enjoy changing up their look, experimenting with color, and adding some shine and dimension to their hair with highlights.
Do you dye your hair? If so, why do you do it? (And if not, why?) Also, do you dye it yourself or go to a salon?