I came across an article in the NY Times about a planned Destiny U.S.A 150 acre mega-mall that puts emphasis on breaking the need for fossil-fuel based energy sources. From the article (requires registration):

More mind-boggling than the sheer scope of Destiny is its agenda. Congel emphasizes that renewable energy alone will power the mall, with its 1,000 shops and restaurants, 80,000 hotel rooms, 40,000-seat arena and Broadway-style theaters. As a result, Congel says, Destiny will jump-start renewable-energy markets nationwide with its investments in solar, wind, fuel cells and other alternative-energy sources


They also have plans for a new type of purchasing system:

A group of companies hopes to perfect a new wireless radio frequency identification technology to enable customers to purchase items instantly without waiting in line. The Department of Homeland Security and A.D.T., a home-security company, have discussed testing new devices that will track all visitors entering and leaving the mall

Man, what an indoor paradise! Not only can I consume products until my heart is filled with sheer joy (purchases = joy right?)  but I can also be tracked in my every move while I make my way through the disney world of mass-consumption and to top it all off I won't have to worry myself about the environment!