Saturday morning in Springs, mist still sitting on Pussy's Pond, and half the yards along the road are waiting their turn. Lawn and Yard Care Corp does the plain and necessary work around East Hampton: mowing, edging, string trimming, yard cleanups at both ends of the year. There is no mystery in it, only the discipline of arriving on the same day each week while the grass keeps up its side of the bargain. Sandy ground out toward the harbor dries fast and grows in bursts, so timing a cut matters more than people tend to think. By evening the whole street looks even, and nobody can say exactly why.