Household Hazardous Waste Materials
Those pesticides you have in your utility room? The box of old batteries you're sure aren't quite dead yet? Those are all hazardous waste or at least waste that must be disposed some other way than tossing it into the trash.
The list of materials that fit into this category is quite long, but there are several general classifications for your HHW materials. This section provides more information on these materials and how they can be properly disposed.