I desperately need a hair cut (just realised it's two years since I've been to the hairdressers!!
) Recently I've been finding more and more grey hairs and I'd like to try a way to cover them but have never had any colour treatments EVER!
My hair is curly, long, dark brown and the grey is getting very noticeable around my hairline and centre parting. I don't have a clue what to go for though - full head of colour? half head of highlights? full head of highlights? how often it'll need repeated? 
Any advice would most gratefully received. I have a couple of important interviews coming up and I want to look professional and grown up. I don't really have a style at the moment, very much a wash-and-go kind of person, and it makes me look younger than I am not in a good way 