Trains run the corridor through Linden all day, and a lawn route learns their timing without meaning to — the 7:12 out, the mid-morning quiet, the long lull while half the city is somewhere else. JGJ Landscaping LLC fills that lull: mowing, edging, trimming, the clippings cleared off the walk, all of it finished before anyone gets home. Late in the season the leaves come, and they come all at once, off the street maples into the hedges and the corners of the yard. What people arrive back to is a lawn cut even, a driveway swept, and nothing left to do with the last hour of daylight. That is the whole idea.