Mendham sits up on the ridge, and the ridge takes its snow seriously — a cold rain down in Morristown can be four white inches on the stone walls along Main Street. BJM Cleanouts LLC works that math at three in the morning, headlights swinging across split-rail fence while the borough is still under its blankets. Driveways get plowed down to the pavement, walks get shoveled to the mat, and salt goes exactly where the ice likes to hide by the back step. By the time the county trucks have finished the through roads, the private drives are already open. There is a particular satisfaction in a cleared driveway nobody had to think about.