I too have a square face and have been in the process of growing it into something for over a year now. I have a picture of Diane Keaton (who also has a square face) that I drag along to every hair cut, but for some reason, I never come out looking like the picture.... I especially liked her hair in the movie "as good as it get's"

I have 90% gray and wouldn't go back to the rat race of coloring for anything. But, I have a few quirky cowlics that drive my stylist nuts (which is why I'm still in the process of growing it out. She keeps cutting the cowlic off and I'm back to square one...