The storms that land in the week before Christmas are the ones people remember here, and the south end of St. Clair Shores, out toward the Grosse Pointe Woods line, gets its share. Patrick McKenney Landscaping Co is out in them — plowing driveways, clearing sidewalks and front steps, putting salt down where the shade keeps ice from ever quite leaving. There is a right order to it: open the drive, cut the apron, then the walk, then the steps. Do that before daylight and nobody has to think about the storm at all. Which is exactly what a snow route is for.