Why get behind all that corn for fuel? It takes so much energy to grow.
Biomass (carbon based refuse) really is the way to go. We can turn anything into fuel. And frankly, I think we should start with dead bodies.
Imagine yourself being used to get someone across town! The precious holiness that one projects upon a corpse could be used in a much more rational way: Is this trip to Ralph's really worth a portion of this dead man's life?
Side Note: My idea of moving tunnels for the movement of goods under every road, house, business and store has yet to take off. One could just bar code the boxes and palates and they would be automatically switched to where they need to go. And the tunnel sections would only turn on if there were goods that were going in that direction. This underground transportation network could also be used for garbage. This massive, well coordinated system could be fueled by my dead body.