The old cottage streets of Twin Lakes were laid out narrow and close, and the yards along them are small, sunny and particular. Joe's Lawn Care LLP mows that kind of lot well — a tight turn at the porch, trimming around posts and meters, edging the short strip of walk that runs out to the street. Little lawns are unforgiving; every missed inch shows from the sidewalk. On a Friday in July, with the village filling up for the weekend, a yard cut that morning makes the entire block look ready. That is the job, one small green rectangle at a time.