I agree with everything here and think there are huge opportunities to make efficiency in our every day life. However I think possibly why this hasn't been taken up quicker is due to Oil and Gas companies. They want us to drive more, they want us to use oil/gas more. However, with that in mind the demand will eventually hit critical mass and at that point Oil/Gas companies will need to reinvent otherwise they may go the way of the dinosaurs. Wouldn't that be ironic?