I am also much more likely to follow through on my to-do lists if I write them on paper than if I try to make them electronically. I wonder if that's a common trait?

A lot of my walking is to or from work (helpfully, the creek is between my house and the relevant bus stop for one job), in which case I'm usually carrying a tote bag and other stuff. But I might be able to fit in a bit of running/jogging on days when I'm only going that way to photograph the creek. That is a good suggestion, thank you. :)