I liked the natural highlights in my hair, so I've only ever streaked it a few times over the years. I don't have too many grays yet, but I decided I needed a 'new attitude' a couple of years ago.
I've done every natural color there is, I think, and I normally dye it every 4 - 6 weeks. Now I go light in the summer (oranges, blonde) and more natural (dark and reds) in the winter. I dye it myself.
I am not a Neurologist, Physician, Nurse, or Hairdresser ... but I have learned that it is not such a great idea to give oneself a haircut after three margaritas