The businesses that think they are saving $ by charging customers that pay by credit card more aren't saving any money at all. Any business that charges credit card paying customers more never has to worry about having my business ever again. So good for you, you saved the 4% fee but lost hundreds if not thousands of dollars in sales by being too cheap to cover the credit card fee yourself. Saying there is " discount for paying cash" isn't fooling anyone either! It should be illegal to charge credit card paying customers more, especially when the economy is great.