When a storm sets in over Millbury, Lake Singletary disappears first — the far shore goes, then the near one, and Route 146 turns into a string of taillights. MSF Landscapes Inc. is out in that, plowing driveways and lots, shoveling walks and steps, spreading salt and sand where the grade wants to throw a car sideways. The work runs backwards from everyone else's morning: clear it, then clear it again if the wind fills it back in. Blackstone Valley snow is rarely light, and a plowed drive at five in the morning is the whole point of the night. Come thaw the pavement is bare, and the town gets on with itself.