Those ubiquitous mountains of black garbage bags, a magnet for rats and a fixture of New York City streets for as long as anyone can remember, are about to become a lot more scarce.  Beginning today, Nov. 12, all residential garbage from buildings with nine or fewer units — including co-ops and condos — must be set out at the curb in bins with secure lids. The new rules apply to the vast majority of the city’s buildings, Gothamist reports. About 88% of the roughly 1.1 million buildings across the five boroughs are residential properties with nine or fewer units, according to the city’s Department of Buildings.     Read the article…………………………….