Saturday morning in Clinton starts quiet — the green still empty, the shops shuttered, dew burning off the grass in front of the old houses on the square. That is the hour DL'S Lawn Mowing Service likes best. Mow, trim, blow the clippings back off the walk, and leave a place looking like nobody came by at all except that the grass got shorter. Kirkland yards are all angles: corner lots, stone steps, tree rings under maples older than the sidewalk beside them, and each one gets cut to fit its own shape. By noon the green fills up with people, and every lawn on the way there is even.