1. What's a fair price to pay for tomato sauce for pies, pasties and sausage rolls?

2. What's a fair price to pay for extra cheese on a hamburger?

3. What's a fair price to pay for corkage at a restaurant?

4. What's a fair price to pay for a cake fee - or cakeage - per person at a restaurant?

5. What's a fair price to pay for ginger/wasabi/mayo with takeaway sushi?

6. What's a fair price to pay for removing shellac from nails before a manicure?

7. What's a fair price to pay for a food and drink tray at sporting or entertainment venues?

8. What's a fair price to pay to have your sandwich toasted at a takeaway outlet?

9. What's a fair price to pay for a reusable plastic bag at a supermarket or grocery store?

10. What's a fair price to pay for a glass of tap water in a nightclub?

11. What's a fair price to pay for extra bacon on a sandwich or hamburger?

12. What's a fair price to pay to use an ATM for a bank other than your own?

13. What's a fair price to pay for breakfast avocado as a side?

14. What's a fair price to pay to hire 3D glasses at the cinema?

15. What's a price to pay as a handling fee for a concert ticket bought online and picked up at the box office?

16. What's a fair price to pay for chicken salt on hot chips?

17. What's a fair price to pay for a takeaway container for a restaurant?

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