A little while ago someone posted about how they had let their hair go to its natural colour and how they loved it. I started looking out for people my age (mid thirties) who are grey and I think I want to do it too, it's bloody expensive getting it coloured professionally and there is always a period where it goes orangey and crap looking. SO, how do you go about growing your colour out? Do you have to have roots for ages, or do you think semipermanents eventually fade enough that you can grow it out without anyone really noticing