>>>One should not use credit card when it is not needed. I mean small purchases can be easily handled by cash...
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>>That's a better way. I don't check credit cart reports (I don't know how you call monthly credit cart reports) for small payments usually. One day I figured out three payments for 7,50 from same supermarket sequential so I revealed that mistake. They had tried three times and said my wife" your card don't give up" so my wife had paid with cash. I found bill, writes "cash" at bill and sent bank and cancelled payment. After that I don't use credit card for small payments.
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>It is called monthly statement. Usually, I have 4-5 lines there and even then I have to think what it was exactly. I cannot imagine checking 20-30 or more lines that many people get because they use cards to buy groceries.

At Turkey worse. Our shops make installment sales (8-10- even 24 months) with credit cards so you see more lines than 20-30 every month.