Out along 75th Street the yards run long and open, and on a late-June evening the sprinklers come on all down the block at once. SharpEdges Lawn and Landscape works that side of Downers Grove and over toward Darien — weekly mowing, trimming around every obstacle a yard can invent, and an edge cut true where grass meets concrete. That line is the difference between a lawn that has been mowed and one that has been finished. Spring starts with a cleanup, autumn ends with leaves off the turf, and the middle is simply showing up on the day. It's plain work done sharply, which is the only kind that lasts.