August in Machesney Park comes down heavy at two in the afternoon, the air thick off the river, the shade under a yard maple worth more than money. Unks Lawn Care works straight through it — mowing at a height that lets the turf hold up under heat, trimming the edges tight, blowing the drive clean before pulling out. On the long level lots here the mower lines run true from one end to the other, and there is real pleasure in stepping back to see them lie down in the light. The service holds all season, week in and week out, with cleanups on either end of the year. A lawn kept honestly all summer looks it, and that is the point.