By late October the oaks along Eastside Park have let go all at once, and the blocks off Park Avenue fill with leaves that will not move on their own. That is when Salcedo Platinum Services LLC is out longest, raking, blowing and carting away what the summer put up, closing out a season of mowing and edging on the same lawns. A few weeks later the same trucks come back with plows and salt, and the pride shifts to a different picture: the drive cleared before dawn, the walk scraped to the concrete, the mailbox reachable in slippers. Paterson asks for both halves of the year, and neither one waits politely for the other. Doing them for the same houses means knowing where every low spot floods and every drift piles up.