The two most known hazard materials are engine oil and batteries, so they require special disposal. But there are many more. For example, all cleaners from the floor to the ceiling cleaners should be treated as hazardous materials. In fact, every product that contains words like: caustic, flammable, acid, poison, toxic, caution or warning should be treated as hazardous material and it should be disposed properly. Look in your house. You will see many products with some of these words in their description.
Almost every community offers a free Hazard disposal collection site. Usually it is just one time a year. There are many year-round areas as well, but you will have to pay. Also, there are many stores that offer you Hazmat disposal, but just for certain items. Home Depot will take care of your old lawn mower batteries, rechargeable batteries and florescent bulbs. Office Depot and Office Max will take care for ink cartridges and toners. You can use Auto Zone for motor oil and car batteries disposal. If you still don’t know what Hazmat is, call the fire department and they will explain to you.
One of the solutions is to think about how much some material you really need. For example, small containers may cost more, but you won’t have problems with their disposal and you don’t need to leave the unused. The second solution is to use safer alternatives. For example, vinegar is a natural antibacterial. You can use it to wash your countertops and floors. All you need to do is to mix a gallon of water and a cup of vinegar. This is a much better option that using those hazardous cleaners.