Thomson ReutersPeople shop on Amazon because it's simple. You browse around for something you like, click, and watch that thing arrive at your door in a few days.
If you want, though, it's totally possible to get more out of the site. In fact, doing so is as easy as downloading a few browser extensions.
We've rounded up a few of the most convenient ones below. They're all free to use, and when used right, they'll all help you take greater control of your shopping habits.