Mistakes happen, and it seems as if they pop up on bills quite frequently. How closely do you read your statements, receipts and bills? Do you take the time to review the actual charges, or do you simply assume that the bill is correct. Remember that when it comes to numbers, errors happen frequently.

For example, one time my bank was even wrong on my statement. The computer added something incorrectly. Sometimes numbers get transposed when they are entered into the computer -- you have to double check.

It is estimated that consumers lose billions making unnecessary overpayments on accounts each year. For example, cellular bills are notorious for being wrong.

There are many things to look for when you are spending money and paying bills. The most common thing to happen when you are shopping is that you are charged the wrong price for an item. Make sure that if you buy something on sale you are given the appropriate sale price. Know the price of the items you are buying. Watch as they are scanned. Know what the approximate total will be so that you will know if things don't add up right.