If you per chance have an old clunker phone that tethers you to the wall, then drag it out and plug it in.  Not only do you get points subtracted from your carbon foot print, but your electric bill goes down.  (Should you be concerned about either.) It seems that that cordless job you have on your counter sucks up two to three watts just sitting in the dock.  The ancient one on the dangerous looking leash only consumes a trace of that precious juice.  Who knew?