macy's when i was younger and would do the christmas rush. you'd see folks returning right after, you know, christmas is done. is that really the best time to do it? >> that is the best time because you're going to have the most wiggle room. as long as you have a receipt with you, you are good to go. some of these stores will only offer a store credit and many of them will offer a store credit for the lowest markdown price so that's what you're up against. electronics retailers in particular have the tightest return policies. sometimes you only get a 14-day window in which to make the returns. some of the retailers extend the window in which to make the return. but if you bought a computer at best buy on black friday, it's not even eligible. and if you reopened it you've got to pay a restocking cases of 15 to 20%. in some cases up to 50% at amazon.com. if you've got an item you don't want, keep it in the original packaging. >> if you use it, you might lose it.