Playing off of numbers is one way to get it done. A few years ago, in order to keep a consistent running schedule I started collecting miles that represent ages. If a friend or family member had a birthday, I would run miles for them - it kept me engaged and positive to know I was racking it up with them in mind. I'm going to start that again after December.
Today I set my alarm an hour earlier to do a 10-minute plank hold, 11 sets of 11 push-ups, and 12 pull-ups. That's because yesterday Misa said, "Mama you should do THIS challenge since tomorrow is 10-11-12. Then we started planning my 12-12-12 Challenge . . .