What you can drop off:
Paints, paint thinner, varnishes, brush cleaners
Kerosene, gasoline
Lawn, garden, and outdoor products
Kitchen and bathroom cleaning solvents
Motor oil, antifreeze, brake fluid
Rechargeable cell phone and computer batteries

For full details and drop off dates visit the Street Department's Web site:
http://www.phila.gov/streets/hazardous_waste.html