It’s important to study your options if you want a good deal, according to Julie Ramhold, a consumer analyst at DealNews.com.

“Before adding something to your cart, be sure to check other retailers to make sure you’re getting the best price available,” Ramhold told The Washington Post in an email. “If there are particular items you’re shopping for, be sure to look into them ahead of time so you’ll know what the normal price is and be able to tell at a glance if it’s a deal or a dud.”