The tide turns under the Sagadahoc Bridge twice a day, and the afternoon light comes up the Kennebec behind it. Tightlines Landscaping Inc spends those afternoons in Bath yards — mowing, trimming, edging walks and drives, shaping beds and clearing out whatever falls into them. A straight line is the point of the name and the point of the work: passes that match, corners squared off, borders that don't wander. Cleanups bracket the growing season so a lawn never has to start the year behind. Bath, Woolwich, Arrowsic and Georgetown, wherever the grass is coming on.