Englewood Cliffs keeps its buildings set back behind trees, so along Sylvan Avenue you see lawn and hedge long before you see anybody's front door. Bergen County Landscapers keeps that green edge — mowing, trimming, bed work and cleanups through the growing season, then plowing and salting the lots and drives once the cold settles in. Weather comes up the Hudson and strikes the top of the cliffs first, which means the work here starts before the traffic does. The measure of a good winter morning is simple: dark pavement, open walks, and nobody having to think about it. In July the measure is a mowed line straight enough to sight down.