If you're just using the card you've been carrying for years, you're probably not maxing out your rewards. Issuers have been increasing their rewards programs in recent months and years. Shop around at sites like lowcards.com or bankrate.com to find a rewards card that suits the way that you spend. Get a second card from a different issuer, so that if your card is hacked and cancelled, you're not without the ability charge items and services while you wait for the new one to arrive.