Giving Tuesday; singer/actress Kellie Pickler discusses the USO; weather anchor/TV host Al Roker ("Today", memoir "You Look So Much Better in Person"); Maria Provenzano makes DIY hot cocoa bombs; Orly Shani makes DIY Dear Santa letter bags; celebrity chef Adam Gertler makes sausage stuffin' muffins; interior designer Lauren Makk makes storybook luminaries; Monika Zands, life and relationship coach, discusses mindset makeover; Nadiya Hussain (book, "Time to Eat") makes peanut butter and jelly sheet-pan pancakes; Shirley Bovshow discusses Christmas tree trimming; favorite Christmas apps discussed;