Tuesday September 29, 2015 is National Coffee Day. How do you like your coffee? Hot? Iced? Well, no matter how you like your coffee, Dunkin’ Donuts has you covered. To celebrate National Coffee Day, Dunkin Donuts will be giving out free medium dark roast coffee. You can get it iced or hot.While you are picking up your free coffee, you can compliment it with a something tasty to eat like a sandwich or muffin. If you need ideas on what to eat, you can click here to learn more about Dunkin’ Donuts. Have a great time!