Kingston Lawn Care keeps the grass of Warren, Rhode Island — a narrow town wedged between the Warren River and the Kickemuit, where the salt air comes up off the bay and settles on every dooryard. The work here is mowing and lawn care, week after week, on the small deep lots behind clapboard houses and out along the flatter, sunnier ground toward Touisset. There is a real pleasure in the finish: the stripes laid straight to the fence, the edge cut clean along the sidewalk brick, the clippings gone and the whole yard suddenly looking cared for from the street. Bay light does something to a freshly cut lawn in late afternoon, and Kingston Lawn Care is in the business of that particular green.