All right, It's time for me to sound off on one of my favorite topics.

Everybody's lookung for the big, dramatic solution. Partial solutiond can have a tremendous impact without major disruption of anything. F'rinstance, putting a water tank in the attic and using it to supply water to your heater can cut summertime water heating costs in half--you just have to install valving to drain and bypass this tank when the weather gets below freezing. Using today's automotive technology on smaller engines and lighter cars instead of SUVs could cut fuel consumption by half--I recall getting speeding tickets with a FIAT 600 featuring 28 hp, so I'm not sure that 250+hp is needed.
    Geothermal-sourced heat pumps/air conditioners make a great deal of sense for large portions of the country. Solar-powered air conditioning for SunBelt areas make a helluva lot more sense than solar heating for the North East.
    AND THERE'S ALWAYS CONSERVATION.