The East Haven Green is a plain rectangle of grass with a granite church standing at one end, and grass like that shows every honest pass of a mower. ACA Landscaping, LLC works the yards on the streets around it — mowing, trimming, and the tidy line where turf meets walkway — and takes a straight stripe seriously. Come December the same blocks ask for something entirely different: a plow blade, headlights, a driveway opened before the coffee has gone cool. There is a plain satisfaction in the sound a shovel makes on a cleared walk at six in the morning, and in a lawn that keeps its edge all week long. From the Green out toward the shoreline streets, that is the whole of the work.