What should we provide customers with after they finish their lemonade?

Providing customers with a new cup after they finish their lemonade is a great practice for maintaining cleanliness and ensuring a positive experience. By offering a new cup, you make certain that customers enjoy their next drink in a fresh, sanitary container. This reflects attention to hygiene standards, which is particularly important in the food and beverage industry.

A refill might be a consideration for some customers, but if they have finished their drink completely, they usually would prefer a new cup to ensure it's fresh. Offering discounts does not directly relate to the drink itself, and while a new straw can also be a nice addition if they request one, it does not address the whole experience as effectively as providing a new cup does. Hence, the act of providing a new cup stands out as the best practice in this scenario.