Here is a terrific write-up from the good people at GOOD on how to save energy with weatherization. As the headline says, not sexy, just practical as all get out. Harvest the latent “oil fields in your attic” with the help of your trusty caulk gun. Save big bucks on heating and reduce rampant CO2 emissions. It’s simple and doable. And then you can participate in the exciting Energy Smackdown Challenge!