Before sunrise in January the ice on Lake Carnegie still holds the last of the streetlight, and the roads above it lie untouched. New Dawn Landscaping, Inc. is out in that dark with the plow — driveways opened, walks shoveled, salt down while the storm is still deciding whether it has finished. In the warm half of the year those same properties get mowing, trimming, edging and cleanups, and the rowing shells go back on the water below them. Two very different jobs, one habit: be there before the day starts. Princeton, West Windsor, Plainsboro, Princeton Junction and Kingston are the territory.