A nor'easter announces itself over Bergen County hours ahead of landfall — the wind turns, the sky flattens, and Elmwood Park goes still underneath it. The Nasello Group LLC works the night that follows: driveways plowed open, walks and front steps shoveled down to the surface, salt spread where ice will try to set before dawn. By the time the buses run and the borough starts its commute, the pavement is clear and passable end to end. There is nothing quite like a driveway opened up before the household has even woken. That is the entire job, and it is a good one.