[downerending]

Very sorry for your loss.

I'm no expert, but one thing that seems to help me is exploiting my natural laziness and bad habits. For example, I got in the habit of getting a nice expresso during the day from a place that's about a mile's walk away. Kind of dumb, but it built a walk into my day that I pretty rarely missed.

Along the same lines, I chose a place to live that involved a fairly long walk to the train. In principle I could have started taking a cab to the station, but I'm just to lazy to make a change like that, and indeed that worked for years (until I moved).