You can literally live on potatoes alone. (and probably improve your overall health). They provide complete nutrition apart from B12 which you can supplement with spray. There's a guy who only ate potatoes for a whole year and tracked his health with regular blood tests and medical check ups. His results were outstanding. LED lighting is another big saver. I reduced my power usage by about 25% by switching from halogen to LED. As for TV, forget it. There's better stuff on youtube and TV only drains your wallet with advertising.