headphone sales are up 14% and sound bars a staggering 80%. if you are hitting the mall -- >> these are lovely but they're a little more than i want to pay. >> reporter: use your voice. with hidden cameras our retail expert, mark ellwood, showed us how to ask for a better deal. >> do you guys sometimes have coupons behind the counter? >> reporter: a connection that saved him $10 off his purchase. clothes have been a really tough sell this holiday season but it's where you're going to find the biggest bargains right now. at retailers like aeropostale, they're posting as much as 70% off and at old navy up to 75%. david? paula, thank you. meantime this evening the uproar over the security breach at target is growing. credit card information for up to 40 million customers affected as you know and now the major bank imposing limits on how much you can spend on your credit card if you went to target. those customers now outraged tonight saying they're now being punished twice.