Out at Rexhame the wind comes off the dunes with sand in it and an opinion about everything. AZ-U-MAK-IT Lawn Care works the yards behind those dunes in Marshfield, where April arrives late and green has to be coaxed rather than assumed. A mowed line here is a small argument won against salt and gale, and there is real satisfaction in the straightness of it. Come winter the same trucks are out before the school buses, plowing drives down to bare pavement so the day can start on time. Mowing, trimming, cleanups and snow — the work of keeping a seaside street in order.