Late June in Waterloo, the dusk stretches past nine and fireflies come up out of the grass along the canal bank. Yard Star Services works right into that light with mowing, trimming, edging and the cleanups that bookend a Finger Lakes summer. Yards here take sun differently depending on which side of the village they sit on, so cut height and route both shift as the weeks go by. There is a moment at the end of a lawn when it all lines up: one height, a sharp perimeter, clippings gone, nothing left to do but load up. Reaching that on the last property of a long day is a good way to end it.