Now that it’s possible to do 100% of your shopping without stepping foot in a store, online shopping is pretty popular.

What many people don’t realize is that they could be using shopping portals to earn way more points for cash back and travel than they could by only using their credit card.

Here’s how:

• Visit evreward.com and search the online store you want to shop at (though Amazon is painfully missing from any shopping portal). evreward.com is free and shows you all the possible shopping portals you could use, and how many points are earned per dollar through each portal.

• Compare portals and choose the one you want to earn points through. For example, let’s say you’re looking to buy a laptop from Apple. After searching and selecting Apple, evreward.com shows you:

• Click the orange arrow next to the rewards program you want to earn through. While the cash-back and “points programs” may only be available if you have a credit card or other account with those banks, the frequent flyer and hotel rewards programs are open to anyone. Let’s say you want to earn some Southwest miles. After clicking the orange arrow, you would sign in to your Southwest rewards account or create an account if you didn’t already have one. Southwest then takes you to the Apple Store, where you can shop as you normally would, earning 1,200 Southwest points buying that Macbook Pro, on top of the points from whatever credit card you’re using.

Shoppers in a few states can even earn points on their first purchase of groceries delivered to their door from Safeway.

It may seem silly to bother with shopping portals for smaller purchases, but those points can turn into flights before you know it.

Buying a $50,000 ring from Zales for that special someone? Buy it from Zales.com using Chase’s Ultimate Rewards shopping portal (2 pts/dollar) and your Chase Sapphire Preferred card (1 pt/dollar), and you’ll earn a quick 150K points.

Think rich people don’t care about points? Check out this billionaire who purchased a painting for $170M with his credit card so his family could fly around the world indefinitely for free. That must be an impressive credit limit. If only he had used a shopping portal on that purchase…