Thunderheads build over the mountain most weeks in July, and the trick in Highland Lakes is getting the grass cut in the clear hours before the sky goes purple. Thirteen Stripes mows for the look of it as much as anything — straight passes, the blades laid light and dark in alternating bands across an open front yard. Up close, the job is details: trimmed fence lines, a crisp border scribed along the walk, the driveway blown clean before the truck pulls out. Cutting, edging, string trimming, mulch, feeding and seasonal cleanups, week after week through the growing season. A lawn finished this way is visible from the road, and that is the point.