Your receipt that is. 'Tis the season for the most register errors. With a high volume of sales comes a greater chance of confusion at the register. Make sure you check your receipts, it will often save you big time.
I took advantage of the buy $50 in Barbie items and get a free rolling Barbie storage tote deal at TRU today ( may have been a one day only sale). When I got home I looked at my receipt only to find I had been charged $26.99 for my "FREE" item. No problem for me as I live 10 minutes from the store and my store has pretty good customer service but for some this would be a big problem. I minute or two with your receipt can save you lots if you are not able to check the items as they are scanned to verify the price ( ie. toddler carrying on:).
Happy shopping and saving to all and to all a good night!!!