Ten principles of low energy building

Martin Holladay has posted a very good guide to the basics of low energy building & retrofit on GreenBuildingAdvisor.com. He wisely avoids mentioning too much green "bling" and instead focuses on smart design and a well-insulated, air tight envelope. The basic principles? Don't build too big, orient the house correctly, choose the right windows, design an air-tight layer and insulate well.