We have already shown you some of the energy saving cords and outlets on HomeQn before. Plug Guard is yet another electrical outlet cover that promises to put a surge on your heavy electrical bills. The outlet cover increases energy efficiency and also brings down you heating and cooling cost, once you shield you outlets with them. Thanks to their spring-activated doors that makes easy to plug-in the cords, and comes back to its position when the cord is removed. Ensuring complete safety from shock, this cover is a big key to save upon the precious energy. You can purchase the set of two covers for $12.99.