How often do you cut and color your hair?

I usually do highlights and a cut every 6 months - I can't afford to go more often and my hair doesn't grow terribly fast so I can get away with it. I wish I could go more often, because I usually wait until my hair looks like garbage to get it done again.
 
My hair grows super fast so I get a cut every 6 weeks. I have at least 50% grey (natural is a light-medium brown) I get blonde highlights and darker lowlights and it's great I only need to do it every 12 weeks. Camouflages the grey better than if I dyed it dark- the roots hardly show with the coloring I get.
 
I have extensions so I have to get them removed and put back in every 6-8 weeks, I usually get a trim, a conditioning treatment and gloss toner done at the same time. Right now I do a bayalage so I only have to get it refreshed every 5 or so months (my favorite thing about it!).