I started doing this, this past Sunday. Sure your furnace runs a little bit more, but your pipes are safe. Bonus too if you have a cat because...my guy Wyatt loves to go rummaging through the vanities, gives him something to do. Yeah I might lose a roll of toilet paper but he's entertained. More talking care of your house tips HERE courtesy of Cleveland 19 News. You stay warm, have a great day & thanks for stopping by.