Paypal Honey
I just saw this on my computers home page. From Paypal.
https://www.joinhoney.com/g-blog/AR-...Upgrade&from=r
"Honey is a free tool that finds the best discounts for you when you shop online. With one click, it'll automatically apply the Internet’s best promo codes right to your cart – in seconds!"
I haven't tried it. But it's free and automatic and supposedly doesn't cost you a thing. I don't buy much online. But, anything helps.