Amongst the five of us, we have three mobile phones, two tablets, a Kindle, five iPods, a couple of cordless Bluetooth headsets, and miscellaneous other bits of electronics that are charged via a USB connection. Sure, most of them came with a charger and, of course, they can be plugged into a computer to charge them, but in practice, we usually end up playing musical chargers with the two we leave plugged in in the hall. Until now, that is.