First of all, thank you to all those who encouraged me. It helped.
Second, I came up with a plan I want to try. It has two parts:
1) Do something physical for 30 minutes each day beyond my normal activity. Doesn't matter what but it needs to be at least 30 minutes. Bias Monday and Thursday for swimming, Tuesday and Friday for biking or spin class, Wednesday and Saturday for sneaker stuff, and Sunday as a wild card.
2) Score on a scale from 0-10 the quality of my diet. Track everything I eat.
I'll post the results daily on twitter along side my normal stream of sarcasm. I don't want to overthink it but I want to see how long I can keep it up. My goal is do this until Christmas.
It will be my present to myself.