With a Discover it® Cash Back Credit Card in your wallet, you can get 5% cash back across rotating categories all year. Discover’s cash-back calendar is centered around everyday expenses — often including restaurants, grocery stores, and more. And the categories for the final quarter of 2025 are no exception. Between Oct. 1 and Dec. 31, cardholders can earn 5% cash back on Amazon.com purchases and at drug stores. Here’s a closer look at what you can get with these categories and how to decide if a Disco ...