- From Madisonenvironmental.com;
- From The Daily Page;
- The UW Arboretum;
- Henry Vilas Zoo; and
- Madison's Children's Museum;
Many of the Earth Day habits will also foster frugality. What is good for your wallet, is usually good for the earth.
Please let me know if you know of another option not posted here...there are a lot and this is just a small sample.