What's in your wallet? 4 best rewards credit cards

NEW YORK (WABC) -- One way to save money is to get rewards from your credit card. There are a lot of programs out there, but which ones are the best?

Best Travel Rewards Card:

Barclays Arrival Plus World Elite Mastercard: It will get you a $40,000 mile initial bonus, provided you charge $3,000 in the first 3 months you have it.

Best Supermarket Rewards Card:

Blue Cash Preferred from American Express: It has the highest rate when it comes to supermarket purchases - 6%. That means you charge the yearly max - $6,000 on groceries you earn nearly a dollar a day, getting $360 bonus bucks back.

Best Gas Rewards Card:

Penfed's Platinum Rewards Card:

It offers about $4.25% percent back at the pump. That will get you back an average of about $110 per year.

Best Cash Back Rewards Card:

Citi Double Cash Card (Mastercard)

This card pays you double. 1% when you purchase, another 1% when you pay it off, and no annual fee.

The Big Takeaways

Before you apply for any rewards credit card, in order to qualify you'll need a good credit score of 660 or higher. Before you apply, check out which cards charge an annual fee. An expert 7 On Your Side spoke to recommends yearly fees under $100. And, take an honest look at your payment habits. Rewards cards typically have higher interest rates upwards of 20%. So, if you don't intend to pay it off monthly, then think twice. The more you pay in interest, the less you'll net in rewards.