If you live on waterfront property (i.e. a lake, the ocean, a stream or pond), be conscious of the runoff from your lawn and landscaping. Where is your stormwater runoff dumping? If in the water, what is it dumping? Use all-natural fertilizers, plant native landscaping and extend the runoffs "soak time" by installing a series of swales and channels to allow the water time to soak into the landscape rather than just dump into the waterway.