The Powerwall for homes and Powerpack for businesses can store energy from solar panels and help you save on energy bills.
Save coupons with your phone's camera, grab coupons others have shared, and get notified when you're in a store that accepts any of them.
Get a refresher course on the secrets of cheap Apple gear, the most affordable smartphone ever, saving money on just about everything you buy online, and more.
If you're fed up of throwing your hard-earned cash into technology's bottomless money pit, check out CNET UK's guide to penny-pinching gizmos.
The software giant and coffee maker Starbucks each chip in $125,000 to keep Seattle's fireworks display from being canceled.
Is your energy bill out of hand? CNET News.com's Michael Kanellos offers tips for cutting costs, as well as power-source alternatives and where to find them.
Two municipalities in California will get efficient, long-lasting LED streetlights and pay for the installation through energy and maintenance savings.
Home energy management start-up will bypass slow-moving utilities and sell gear directly to consumers eager to try tech for home energy efficiency and control.
IBM introduces Intelligent Building Manager software, which makes buildings more energy efficient by analyzing data from office cubes, HVAC systems, and other building hardware.
The Nintendo 3DS hits UK shelves very soon indeed -- we talk you through the best places to pre-order, and bag yourself a bargain bundle of 3D gaming goodness.