Is a cash rewards card worth it?

If you have the right card, yes. The Affinity Cash Rewards Visa® Signature Card lets you earn up to 5% cash back on purchases at Amazon and bookstores, 2% for most food, gas, and streaming and ride services, and 1% on all other purchases. Since there are no annual fees, it’s like earning a discount of 1% to 5% on everything you buy.