Want to go green and don't know how, try an Eco-Starter Kit. They're a start, and after someone realizes that everything in the box is available in local stores, what is the next step? It's easy enough for me to say its available at local stores though, as I live in Los Angeles. Which is behind relative to other cities.
Once Sustainability is the mainstream, what will happen to these start kits? What is the next evolution of this? Maybe you can have an empty box shipped to you because as a society people will evolve beyond being consumers. It's a dream I have.