The first genuinely warm Saturday in April, Linden opens its windows and every yard suddenly looks like a list of things to do. Zakai Lawn Service starts the year right there — the cleanup cut, winter's litter pulled from the hedges and the fence corners, edges recut after months of blur, beds cleared so the soil warms. From then it is a steady rhythm of mowing, edging and trimming while the ground is still soft and the grass is coming in thick and fast. Late in the year the leaves get carried off before they mat down over the turf. The yard is handed back each week looking like somebody meant it that way.