A haircut and a lawn have more in common than people admit: both come down to the line, and both come back around in a couple of weeks. Lawn Barbers LLC keeps Dunellen trimmed on that cycle — mowing, edging, string work along fences and foundations, cleanups at either end of the growing year. When winter takes over the tools change and the standard does not: driveways plowed, walks shoveled, salt down on the shaded stretch that stays slick all day. Storms rolling off the Watchungs can drop wet, heavy snow on a borough of tight driveways, so it pays to be out early. In either season the finish is the tell — a clean edge, a clear path, nothing left half-done.