By early June the camps around Little Sebago are open again and Windham fills up — boats on trailers, Route 302 busy from breakfast on. All Hands Lawn Care LLC works the lawns behind all that traffic, mowing and trimming, edging beds, laying mulch, and handling the cleanups at each end of the season. Lakeside yards are their own puzzle: slope, shade, sandy ground, and a lawn that has to look right from the water as well as from the road. Getting it right means a cut that holds its line all the way to the shore edge and no clippings anywhere they don't belong. Between the ponds and the pines, that is a summer's work.