Clicking "Complete Purchase" is easy. But making sure you're getting the very best deal every time you buy something online? Not so much.

Fun fact — actually, really, really sad fact: Finding and verifying online sales can feel like a full-time job. (We would know, since it's literally ours.) Prices can change from minute to minute and vary from site to site. Some retailers will even go out of their way to make their prices look better than they actually are with inflated or outdated listings.