Gun Lake lies wide open to the sky in Yankee Springs Township, and on a July afternoon the blue above it seems to go on without end. Blue Sky Landscape LLC keeps lawns cut through those long weeks — mowing, trimming and edging around the drives and cottage yards of the lake country. Grass comes on hard in these sandy hills once the rains arrive, and it takes steady visits to keep it looking effortless. Spring and fall cleanups clear away winter's litter and then the oak leaves that let go late. The reward is a lawn that looks like nobody had to work for it.