In this day and age, everything is about monthly subscriptions. Our entertainment, shaving, shipping, and even food are examples of some of the monthly subscriptions many of us pay for. This idea is something fasts food restaurants should jump behind. Restaurants like McDonald's could have reusable cups that have a bar code that would scan at the register. A phone app would be connected to your own reusable cup, upon paying a monthly fee you would get unlimited drinks per month. Since drinks only cost McDonald's .16 cents to make, they would make profit if they only charged the customer five dollars per month. They could restrict it to one drink per day also.