It certainly seems like more and more these days, we're charging our electronic gadgets not by the standard power outlets in our walls, but via Universal Serial Bus (or USB) cables plugged into other gadgets of ours -- like laptops, for instance. But we certainly can't lug around one piece of equipment at all times to charge another. Sometimes we have to revert to the "classical methodology" -- plugging into the wall. Which is why the USB power outlet we have pictured is sheer genius. ...