Have you heard of Mambo Sprouts? It is a company that encourages green and healthy living. They partner with several brands to offer organic coupons. Also, they have a great website with several very interesting articles, recipes, and giveaways every now and then.
You can subscribe to their site for free and receive a coupon booklet by mail 3 times per year, if you are unable to find it in your local natural and organic stores. Where I am located, we don't actually have any of the great stores like Whole Foods, Shop Rite, or Ukrop's. This is very unfortunate, but thankfully, I can hopefully receive this great booklet by mail! Of course, quantities are limited and not all subscribers will receive one. There is also an option for e-coupons that you can print at home.
There are some interesting articles here, regarding things like using natural foods and reducing waste.
Also, Earth Day is April 22nd, and if you are a fan of Mambo Sprouts on Facebook, then you might win a $10 gift card! Check it out!