Wind moves hard across Island Pond in January, and it finds every driveway on the exposed side of the road. JRG Exterior Home and Yard LLC takes those on — plowing, shoveling walks and entries, snow blowing what the plow cannot reach, spreading sand and salt on the slick apron by the mailbox. Winter in Derry is less an event than a habit; the storms line up, and the answer is to be out in them. The good moment is small and always the same: the last pass, the driveway wide, the shovel set back in the truck. Then on to the next house before any light comes up.