Put trash in the can instead of the gutter. Use soap sparingly when washing your car. If you must use chemicals on your lawn, don't spray on a windy day or when rain is expected. To improve drainage and decrease run-off, avoid landscaping with hard surfaces and instead select vegetation, gravel or other porous material. Sweep your driveway and sidewalk to collect any toxic materials that could be washed into waterways and properly dispose of the waste. Redirect rain gutters onto your lawn or into collection barrels to water your garden. Scoop pet waste. An estimated 15 tons of pet waste flows into ocean waters every day.