Stop overpaying online with Capital One Shopping's browser extension

If you're an avid online shopper, you know the power of a great promo code. After all, why would you buy something at full retail price, when you could own it for a fraction of the cost? Part of the beauty of online shopping is that it's easier (and...

source https://www.engadget.com/capital-one-shopping-browser-extension-233033850.html