Green Zebra is a guide to environmentally-friendly businesses in the Bay Area. It offers a great coupon book for $25 with over $10,000 of savings from hundreds of sustainable local businesses. These businesses include restaurants, wellness centers, retail vendors, and various service providers, all of which have met certain standards deemed favorable to the environment.

Of course, as with most coupon books, you probably won't end up using that many of the coupons, but it's satisfying to know you are helping the environment and local community by making such a small purchase. I think this is a great idea that not only encourages consumers to support sustainable businesses, but also promotes better overall business practices by increasing the awareness of Green Zebra's environment-conscious participating partners.