Any unused paint should be stored in tightly sealed cans and placed upside down to help maintain the seal. Please do not pour leftover paint down the drain.
To dispose of paint, convert it to a solid waste then dispose of it with your regular waste. To convert it to a solid waste, remove the lid to allow the water or solvents to evaporate. Do this in an area where children cannot reach it.
For projects that will take more than a day to complete, try wrapping your brushes or rollers in a plastic bag for reuse instead of cleaning them at the end of each day. They will last overnight or even a few days if kept out of daylight.
Upon completion of your project, scrape any excess paint from rollers and brushes with a stick or scraper. Doing so prior to washing will make them easier to clean and is easier on the environment. When washing equipment, be sure to do so in a sink or drain so it is treated instead of ending up in the ground or our drinking water.