If you don't have time to compost your leaves or yard debris this spring, Boston Public Works Department will. Place leaves, and yard debris in large paper leaf bags or open barrels labeled "yard waste" (no plastic bags). Yard Waste stickers for barrels are available by calling 635-4959. Put barrels, bags and branches on the curb 7:00 AM on your Recycling Day through May 23. http://www.cityofboston.gov/publicworks/recycling/RecYardwaste.asp