Burger King is letting you decide how you want its “2 for $5″ promo. For a limited time, mix and match two sandwiches for $5. Choose from the new Yumbo Hot Ham & Cheese, Original Chicken Sandwich, Big Fish and Big King. You must purchase two to get the discount. (If not, expect to pay full price. With some of the sandwiches costing around $4 at regular price, why not buy two?) At the discounted price, if you’re really hungry, you might be able to eat two — just skip the fries and soda. Or, better yet, treat a friend. The lineup changes every few months, so check the menu first for the special before ordering.