Westbrook grew up around the falls on the Presumpscot, and its yards are still laid out the way mill town yards are: close together, squared off, with a strip of grass that deserves to look sharp. Willie C. & Sons Landscaping mows and trims those lots all summer, cutting the edges along sidewalk seams and driveway aprons so each yard reads clean from the street. Cleanups bracket the warm months at both ends, and then the trucks change over. From December on it is plowing driveways and shoveling walks in the dark, working the tight in-town lots where the snow has to go somewhere exact. Westbrook and the towns beside it, summer and winter both.