Late afternoon on a Portville hillside, the mower running the contour while the shadow of the ridge comes down across the field edge — that is a good hour for this. GRAYSWORKNY handles mowing and trimming, cleanups at both ends of the season, and brush cut back where the woods have been leaning in on the lawn. The ground here is rarely level, so cuts are taken across the slope and the trimmer finishes what the deck cannot follow. Leaves come off in November in one long push, and the grass goes into the cold short and even. Standing at the top of a lot when it is finished, the whole slope reading one clean green, is reason enough to keep at it.