But you know what else you can do that works like a charm? Designate as much of your work for Saturdays and Sundays as possible. Fewer of your friends on social networking sites or instant messenger services will be online to tell you about their night last night. Fewer gossip sites will be updating their content as frequently as they do on weekdays.
The weekend is a perfect time to get some of your online work done without distraction. Start doing this and you just may be able to cut down the amount of hours you spend online working weekly, therefore cutting down your energy consumption.