The new age of sustainability is like a three-legged stool, and over the last couple of weeks I've discussed my ideas for the first two legs, including customers and energy or transportation. The third leg involves products, and this idea takes some thinking to fully comprehend. Most of us don't think a lot about products because they are ubiquitous. Unless you lived in the old Soviet Union, the concept of bare store shelves makes no sense. In the old CCCP, basic commodities were in short supply, and for everything from bread to shampoo, you stood in line.