I spent the morning picking up trash at Lands End in San Francisco as part of California Coastal Cleanup Day. This is an annual event where volunteers gather to help keep our public places beautiful. It made me grateful to live in Northern California, but also sad for how discourteous some people are with the debris they leave behind. As a plein air painter, I feel fortunate to capture so many scenes that change over the years due to environmental conditions or population growth. I take the responsibility seriously as an outdoor painter to help the environment. It is critical to set an example and clean up all trash accumulated during a paint out when done. What habits have you acquired in your plein air work to assure you retain the pristine conditions you paint?