>Motivation is fleeting but routine persists. When there is something that you want to do regularly (exercise, doing the final boring part of some sideproject, cleaning the house...) you remove willpower from the equation and set a day and a time.

Absolutely!! Don't wait to Feel Like It, or Be Motivated... and especially do not depend on another person/trainer/weather to motivate you!

Fitness is a to-do, like laundry or grocery shopping or going to work. Now where the nuance comes in is finding what you enjoy. But a nuance of this nuance is, you don't know what you like until you have done it for a while, at least one month. Don't do boot camps or hacky gimmicky things people try to trick themselves into doing.

For a while I was deep into photography and writing. In both, I read and listened to people who were experts - successful writers and photographers. I learned this - they don't wait for inspiration. They commit X time per day to doing their craft, as habit.

I write this after coming from the gym, on a chilly night, after a relatively annoying day, and I feel 80 percent better.

Now the joint soreness and constant tightness are a problem, cuz I'm getting older. But it must be done.