@dc535843 I also have to dig out post holes and trench for some underground wire. This strategy isn’t optimal for tree holes, but it’s great for all that other stuff.
@394b5c0e depends on your goals. Year or two ago I had a sewer line back up tracked it down to a specific spot in the yard and grabbed a shovel. Little over three days of digging after work on that one just to get to it. Repaired it and filled it back in in another four days or so. Sense of accomplishment goal and it blew away all my exercise goals.