Arlington's streets run out from Raymond Avenue under old shade trees, the Casperkill slipping along behind the back yards on its way to the Hudson. Dutchess Lawns & Masonry keeps those properties in order all year — mowing, trimming, edging and mulching through the growing months, cleanups when the Hudson Valley leaves come down in a rush, then plowing, shoveling and salting once winter takes over. A Poughkeepsie snow can be wet and heavy enough to test a driveway before breakfast, and clearing it early is the whole point. Come May the same yard wants nothing more than a straight line and a sharp edge. Arlington, Poughkeepsie, LaGrange, Pleasant Valley and Hyde Park.