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13. Volunteering at a National Park
Thanks to proposed budget cuts and an increasingly unpredictable future, the National Park Service (NPS) needs our help. You were already planning to prune the azaleas, so why not work up an altruistic sweat while you're at it? Sign up to lend a hand at one of 417 areas nationwide and the NPS will happily put you to work weeding or spotting invasive plants. Visit Volunteer.gov to find out where to wield your clippers.