Jennifer Aniston will probably always be known as "Rachel," her character in the TV show "Friends," or Brad Pitt's ex-wife.  She's been in a number of movies, but none have been a box office hit.  Now she's turning her attention to commercials.  She's pushing Smartwater in a new viral video.  It won't win her any awards, or make her millions, but it's very creative and if you like Jennifer Aniston, very sexy too.  It could be her best role since Rachel