Winter on Circuit Avenue is a different street entirely — shutters down, the summer crowd long gone on the last boat, and snow coming in sideways off the water. Better Call Bosko is the name people reach for when the driveway has disappeared and the day still has to start on time. Plowing, shoveled walks and steps, sand and salt where the ice sets hardest along the shaded north sides of things. Most of it happens in the dark, in the hours between the storm easing and the island stirring, so that by first light the pavement is black again and the mailbox is reachable. Oak Bluffs is small enough that an opened drive is a favor and a job at the same time.