Instead of purchasing extension cords for your home, you might want to consider the Rambler Socket assuming the concept is turned into reality. The Rambler Socket is basically like having an extension cord which recoils back into your wall. Rambler Socket comes with an extension cord built into the power outlet behind its socket. when you don’t need it, it’s neatly tucked away. When you need it, just simply pinch the sides and wind it out. Looks like the perfect device for appliances such as vacuum cleaners and hair driers since you won’t need to purchase a dedicated extension cords then. – Via – Yankodesign