This Sneaky Retailer Trick Could Cost You Hundreds of Dollars

With all the Black Friday and Cyber Monday deals out there, it can be tempting to sign up for a store credit card that promises a 0% interest rate for the first few months.

But those "deferred interest" deals can rack up big fees if you end up with a balance or miss a payment. In fact, some retailers’ offers stipulate that even if your balance at the end of the introductory period is just a few dollars, they will be able to charge you interest on the full original purchase amount.