Ground Effects LLC keeps its mowers turning across the small hills and lakeside yards of East Brookfield, where the Seven Mile River slips down toward Lake Lashaway and the Quaboag valley opens westward into long, easy light. Lawn care here means reading ground that changes every hundred feet — soft and sandy near the water, stubborn and stony where an old pasture wall still runs somewhere under the grass. The reward is plain and physical: stripes laid straight across a Friday afternoon, an edge cut clean along the walk, clippings blown off the drive so the whole place looks like somebody loves it. Spring cleanups pull the winter out of the beds; autumn asks the same patience in reverse, maple leaf by maple leaf. It is steady work in a town small enough to notice, and the yards say so.