1: "Receipts at McDonald's help track your spending."

2: "They serve as proof of purchase."

3: "Receipts make it easier to return or exchange items."

4: "Keep track of your favorite orders with receipts."

5: "Receipts can help you budget better."

6: "Protect yourself from unauthorized charges with receipts."

7: "Receipts make it easier to claim warranty."

8: "Keep a record of your dining experiences with receipts."

9: "Don't forget to ask for a receipt at McDonald's!"