I was getting my hair cut today and my hairdresser told me about a half price deal they have going on colours at the moment. I have naturally medium blonde hair and she said she could put a few really fine highlights in my hair that would just make it look kind of sunkissed. She said she'd give me a half head, but i don't really know the difference. My only worry is that although there is a deal on right now, i'm not sure i can be bothered/afford to keep up with highlights after i start getting roots. She said that if she did them really fine, you wouldn't really be able to see that they had grown out as it would just look natural. Is this true?