I keep a pinned phone note with two columns: date and route. My dog gets a check if she comes; I add a weekly total and one plain note like “rainy, short” or “library loop, easy.” It’s not a fitness app, just a habit that takes about 30 seconds.
Eight weeks of that showed my main pattern: I walk more when the route is decided before I put my shoes on. The note is the evidence; the dog is the nudge.
What tiny tracking system has actually stuck for you?