Recycle your leftover paint and let it help others, instead of ending up in a landfill and potentially poisoning our groundwater.
Materials for the Arts accepts donations of paint for distribution to nonprofit cultural organizations and arts programs. Call them at (718) 729-3001 or visit http://www.mfta.org/.
NYC Dept. of Sanitation Self-Help Special Waste Drop-Off Sites accept up to five gallons of latex paint per visit can be dropped off at any site. See http://www.nyc.gov/html/nycwasteless/html/at_home/special_waste.shtml