The Solid Waste Authority of Central Ohio (SWACO) operates a permanent drop off location for household hazardous waste. Consult their web site to find out what you can take there and the hours of operation. Latex paint should be hardened or solidified (dried) and disposed of with household trash. But if you have items such as gasoline, kerosene, helium tanks, motor oil, smoke detectors, propane cylinders, batteries, pool chemicals, or antifreeze, please deliver it to SWACO so they can dispose of it safely. Check out their web site for more information.