Great Blue Hill takes the storms first — you can watch the snow line come down its side toward Randolph Avenue an hour before it reaches the driveways below. Zammito Landscape Construction runs into that hour rather than away from it, plowing drives and lots through the night, shoveling steps and walkways, spreading salt and sand where the grade turns treacherous. A Milton storm rarely arrives politely; it comes sideways off the hill and it keeps coming. The point of the work is simple and unromantic: at six in the morning, the car goes out.