Fleetwood wakes up on a slope, and every slope in Mount Vernon has an opinion about ice. All Seasons Maintenance, LLC takes the hillside driveways first when a storm comes down out of the northeast, cutting a path to the street so nobody has to negotiate the hill on foot. In the green half of the year the same addresses get mowed, trimmed and edged, hedges kept back off the walk and clippings carried away. This is a small city of brick and hedge and short front walks, where one tended yard changes the feel of an entire block. Rain, freeze or flat July sun — the year here has work in every week of it.