WattzOn, a service that helps you visualize how much energy you’re using through its website, so that you can start minimizing on it. You can check out energy-consumptions of transit, ranging to food to goods purchased. The process works by calculating the energy consumed by the device, as well as the energy taken to build it. Though it’s not as easy as it seems, requiring you to enter accurate data through your power bills and grocery receipts. But what it does is give you a good idea of the daily power consumptions that one might happen to ignore.

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