Addison sits under the approach to O'Hare, so afternoons here carry a low steady sound overhead, jets easing down toward the northeast one after another. Underneath it, Hernandez Mowing works the block, cutting, trimming around posts and fence lines, edging the sidewalk seams, then clearing the driveway of every last clipping. Mowing is a rhythm before it is anything else: the same width, the same overlap, the same turn at the corner, and the pattern takes care of the rest. Midweek these streets are quiet, which is when a lawn gets its best hour of attention. By Friday the yard is still holding its color and the lines still show.