National Coffee Day is Tuesday, September 29, and we've rounded up some of the best coffee deals and freebies available around the Katy area. This year's offers include free hot and iced coffee, discounted drinks, bonus rewards and other National Coffee Day specials from places including Dunkin’, Circle K, Einstein Bros. Bagels, PJ’s Coffee, Scooter’s Coffee, Smoothie King, Tim Hortons, Whataburger and more. Some offers require a rewards membership or app, while others requ