[header] How to handle a household chemical emergency [title] Buy only as much of a chemical as you think you will use. [step] Leftover material can be shared with neighbors or donated to a business, charity, or government agency. For example, excess pesticide could be offered to a greenhouse or garden center, and theater groups often need surplus paint. 
Some communities have organized waste exchanges where household hazardous chemicals and waste can be swapped or given away. [title] Keep products containing hazardous materials in their original containers and never remove the labels unless the container is corroding.