Do you own any digital photo frames, but feel that they are a waste of electricity when you leave them on for nobody to look at? Well the folks over at NIX have come up with a solution to the problem – motion-sensing photo frames. These specially designed photo frames have sensors that can detect if anybody is nearby before it powers itself on to display the photographs stored on the device. A pretty useful enhancement to the photo frame if you ask me – especially if you’re the kind of person who forgets to turn things off when you leave the room. Not to mention it would make a good scare for burglars who break into homes and are suddenly greeted by photo frames displaying macabre photos. The frames come in 8″ ($99.99) or 12″ ($139.99) and can be purchased here.