Jennifer Aniston wants everyone to know that she cares about the environment. Ahead of the Live Earth concerts, she revealed that she takes three-minute showers and even brushes her teeth in there. I'm not sure what's better: the idea that Aniston actually takes three-minute showers (come on ... I'm a pretty hardcore greenie and I don't even do that!) or that her advice — well meaning though it may be — is terribly ungreen. The most efficient water-saving showerhead still pumps out a couple gallons of water per minute, and the kind of head Aniston likely has installed could easily drain out 10 gallons per minute or more. If you brush your teeth for at least two minutes, you're looking at at least four or five gallons of water down the drain. If you clean your teeth at the sink, you can get away with allowing just a few cups of water down the drain. I think Aniston meant well, but she was terrifically unprepared to talk about green living. (I'd be just as unprepared to talk about life as a rich Hollywood celebrity, so we'll call it even.)