Julia Roberts takes beauty tips from her late grandfather. The 'Pretty Woman' actress - who is famed for her mega-watt smile - says one of the best bits of advice she ever received from him was to brush her teeth with baking soda.
The mother-of-three said: "I brush my teeth with baking soda. My grandfather would put a big heaping mound of it on his toothbrush. He had only one cavity in his entire life."