06/12/2012 09:40 pm ET

Christy Turlington-Burns On How Washing Hands Can Save Lives

It's a standard of all handwashing posters no matter how elaborate or simple: Wet the hands, use soap, lather, rinse and dry. For many, these posters are an unnecessary reminder of what is already known and a waste of paper. But, these posters do more than jog memories: they offer a checklist for good practice.