Shoppers and retailers have Black Friday and Cyber Monday. Causes and charities now have #GivingTuesday, the giving season's opening day! You can give to a charity, mentor a young person, or pledge to volunteer. What will your action be? Write it on a piece of paper with the hashtag #GivingTuesday, and post the photo on Facebook, Twitter, Tumblr or whichever social media platform you prefer to help spread the word.