By Stas Bekman.
Published: 16 July 2006
It's not uncommon to have a cashier make a mistake and charge you for the wrong item. For example when you buy fruit. Two different apple brands may have a big price tag difference, however it's easy to mix the two and charge the more expensive price. So monitor the prices you are being charged when you are at the checkout stand and review your receipt.
If the item you buy has a discounted price on display, check that you actually get this discount at the cashier. Very often the display price is updated, but the cashier still charges the undiscounted price.
If you pay cash, check the change. How often you buy a dollar-worth thing, give a 20 dollars bill and get $9 back. Right, the teller has forgotten that you gave her $20 and not $10.
Check your monthly bills as well. Look for unusual charges, things that you don't understand, call the company and ask questions. How often the telephone company sends you a bill that takes a degree in math to understand and they make mistakes in those?