Evening on Fairfield's residential streets is porch lights, sprinklers ticking, and the smell of somebody's grass cut an hour ago. Vision Residential Services works those blocks house by house, mowing, trimming along the foundations, and edging the sidewalk seams that grass tries to swallow every June. Autumn brings the leaf work, raking and blowing and hauling, until the lawns come out from under a month of maples looking bare and cared for. Small things add up on a residential street, and a clean line at the driveway apron is one of them. The idea is that someone pulls in at the end of a day, glances at the yard, and simply feels better.