October arrives at Birchwood Lake all at once — one cold night, and the oaks let go together. Arthur`s Maintenance All Seasons works the short afternoons that follow, mowing what still grows and lifting leaves off turf before rain mats them into a blanket. Headlights come on early while the water goes pewter through the trunks, beds get cleared, and edges redrawn. Grass left breathing under frost comes back stronger in April, and that is the whole argument for doing it now. From Mountain Lakes over toward Montville and Morris Plains, the borough goes into the cold looking cared for.