The book itself practices what it preaches - it was printed on post-consumer-waste recycled paper using soy-based inks. And while some of the suggestions are challenging, like getting your family and friends to have simpler, less wasteful gatherings, the book concentrates on more obvious, small tips like skipping bottled water, taking shorter showers, and obeying the speed limit (gas mileage goes down at speeds over 60 m.p.h., so keeping speed under control will not only save drivers from being pulled over, but also will save money and the environment).