South Amboy climbs up from the water in a handful of short blocks, so an August afternoon on Broadway carries a breeze that smells faintly of the bay. JT Landscaping cuts the lawns up and down that slope — mowing, trimming around steps and fence posts, edging where a yard runs into the sidewalk. Salt air and sandy soil make for grass that needs a steady hand, so the schedule holds week to week rather than whenever things get shaggy. Cleanups bookend the year, beds opened in spring and leaves carried off in November. Small yards, cut properly, make a whole street look sharp.