Dunkin already has the amazing Maple Sugar Bacon Sandwich on sale this week. The deal lasts through October 21st, which is Monday. Do you love breakfast sandwiches from Dunkin? Bring the FREE breakfast sandwiches! Now through 10/23, get one free classic breakfast sandwich daily with purchase. This is great to pair with iced coffee, cappuccino or any other tasty drink on the menu. Download the Dunkin app, sign up for their rewards and earn points towards free items.