I was considering dropping a day or two, but reckoned that they would just expect me to do what I normally do in the three days I was working and the extra days at home wouldn't be enough to really get into a "project" before I had to go into a work again. So I worked fulltime for six months after I reached 65 and enjoyed a brief time when my pension monies started coming in and was still being paid. I tried to bank the extra money to prove I was ok financially and then gave my notice. I haven't missed the job I "loved" doing.Sounds like going part time in a few years time might be an idea.
Haven't increased my cycling significantly, but waiting for the frost to melt and going out in the middle of the day is a real bonus.