Some nights the snow falls straight down over Brady Township with no wind at all, filling the yard light and hushing the whole road. Needhams Leaf & Lawn Services LLC is out in that quiet, plowing driveways clean, shoveling walks and steps, and clearing the path to the door before it packs into ice. The trick with a windless snow is timing — go too early and it fills back in, wait too long and it sets up hard underneath. Across the farms and side roads nearby the work runs from the first storm of the season to the last one in March. Come morning the drive is dark pavement between two white walls, and that is the whole idea.