Late summer evenings along the Kishwaukee come with a coolness that lifts off the water and drifts up into town about the time the shadows go long. Jb Lawn Care is often still out then, finishing a cut, running the trimmer around a foundation, putting a last edge on a walk. Grass slows down in that stretch of August, but it does not quit, and neither does the route. There is something steady about mowing the same yards week after week and watching a whole season hold its shape because somebody kept turning up. The mower cools off, and the lawn looks like it was never touched at all, which is exactly the idea.