The Flatbush Ave. BID provides year round sanitation and graffiti clean-up services for properties and businesses in the BID (Flatbush Ave. from Parkside Ave. to Cortelyou Road). The next graffti clean-up will be on Thurs. Oct. 23, 2014. If your Flatbush Ave. BID property or store has graffiti on its exterior, please notify the BID by end of the day on Wed. Oct. 22 so we can add it to the clean-up list. You can reach us at 718-282-2500, x79290 or FlatbushAveBID1@gmail.com.