Saturday morning on the old grid, along Collyer and Emery and Bowen, means bikes on the sidewalk and somebody's sprinkler overshooting the curb. Checketts Family Lawn Care fits into that scene without disturbing it, mowing, trimming and edging walks that have been settling gently since the town first laid them out. These are yards with character, small squares under big shade trees, and they ask for a careful pass rather than a fast one. Cleanups take the corners and the fence lines too, because a lawn is only as finished as the part nobody wants to bend down for. By lunchtime the street looks combed, and the afternoon belongs to whoever lives there.