Yeah, I wondered about that, but my electronics-fu is not up to analyzing it. Running low voltage DC from one end of a large house to the other might simply not

Yeah, I wondered about that, but my electronics-fu is not up to analyzing it. Running low voltage DC from one end of a large house to the other might simply not be practical. I'd still like to see a low-voltage plug standard other than USB and cigarette sockets, even if the conversion was being done inside the electrical box in my wall. I see the huge number of wall warts I have as a source of needless duplication and waste. (They are also, I understand, a revenue source for vendors selling replacements at inflated prices, so there is an economic incentive for the status quo.)