<p>The drip, drip, drip of your landscape irrigation system could soon be fed with wastewater from your shower, washing machine and sink. Oregon is working to become the latest state to permit the reuse of such “graywater” outside the home. <a href="http://www.portlandtribune.com/sustainable/story.php?story_id=130291467742053500">More</a>&nbsp;(Source: Portland Tribune)</p>