Now that November has arrived, many Americans are thinking about celebrating Thanksgiving with their family and friends. They are planning the menu or perhaps finalizing travel arrangements if the family lives far away. We all know about the day after Thanksgiving, Black Friday, famous for its big holiday sales and deals. But, did you know there is another important day that is celebrated the day after Thanksgiving? It is National Flossing Day — a day dedicated to the importance of flossing your teeth and raising awareness about proper oral hygiene.