Upon quitting work, on any particular day, I may choose to do anything or nothing. I can extend that to a complete year if I so desire and remarkably I just did.
I have never really liked getting haircuts. I decided there's no need to have my hair trimmed as I'm not in front of a whiteboard and classroom full of students any more. I once had it quite long when I first retired. Then, last winter I cut it quite short when we were in Egypt. In fact, the very last time I had my hair cut was in Luxor exactly one year ago tomorrow.