The 2 Sandwich Library Of Promotions attract both single customers (that will purchase 2 sandwiches for themselves) or two customers that will eat their own individual sandwich. Each customer will usually purchase other items such as a drink, fries, desserts, etc. Each of your restaurants can either have the same or a different price for the same 2 Sandwich Promotion. The 2 Sandwich Promotion options help increase profit and traffic for all your restaurants.