These three credit cards offer big rewards for travel, groceries, and another spending category of your choice. See if they deserve a place in your wallet.

Square is a leader in the credit card payment app space, offering a seamless blend of hardware, software, and payment processing that caters to businesses of all sizes. Its robust ecosystem includes everything from a free point-of-sale (POS) app to advanced tools for inventory management, team coordination, and customer engagement.

In this video, I explore the inner workings of a credit card by taking apart an old, unused American Express Rose Gold Card and examining its layers. While many of us are familiar with how credit cards work,