Has anyone done this? I'm not brave enough to let it all grow out yet. I'm light brown/dark blonde and it goes a bit gingery if I let the dye age too much. I'm debating choosing a lighter blonde which I know won't lighten the dark blonde/brown, but I hope should cover the grey a bit and warm it in tone as it grows out a bit. Occasionally I get highlights, but don't want the cost and time it takes to do it all the time.
In my head it means I'll be less gingery and the grey growth will be less obvious.