A lawn is a haircut you can see from across the street, which is more or less the idea behind SJ Lawn Barber Llc. In Highland Park the front yards are modest and public — a strip of green between the porch and the sidewalk, judged daily by everyone walking past. So the work is precise: an even cut at a consistent height, trimming around the maple and the mailbox post, a sharp edge scribed along the concrete, and the walk blown clean at the end. Add mulching, hedge trimming, overseeding and cleanups at both turns of the year, and a plain borough lot starts to look deliberate. Small yards, cut sharply, week after week.