As you probably know, there is a Costco credit card issued by American Express called True Earnings.

Disclosure: We are advertising partners for their cards (and most other banks)

This card has some killer rewards you can’t get with any other credit card.

• 3% cashback on gas – Not just at Costco, but at virtually any gas station.
• 3% cashback at restaurants – If a restaurant takes American Express, you’re saving 3%.
• 2% cashback on travel – This includes your airline tickets, hotels, car rentals, cruise lines, tour operators, etc. We all know how out of control airfare prices are, so this is a big plus you don’t see on many other credit cards.
• 1% cashback everywhere else, including Costco.
• No limit on the amount of cash back you can earn.
• No annual fee as long as you have a Costco Membership.
• The TrueEarnings Card doubles up as both an American Express credit card and your Costco Membership card.
• You can pay your charges in full or carry a balance.

The benefits don't just stop there. When you shop there's the Buyer's Assurance Plan, which mirrors manufacturers' warranties for covered products you purchased with the card, for up to one full additional year. Isn't that nice to know that things you buy with the card can automatically have the length of their warranties doubled for free?

You're also covered with the Purchase Protection Plan, which protects covered items for up to 90 days from the date of purchase if they are stolen or even accidentally damaged. The last thing you want to do is buy some pricey item while your on vacation, only to have it stolen or damaged in your luggage. With this card, you don't have to worry about it if it's covered by this.

Have your Costco card handy because you will be asked for the account number when you apply. If you don’t have a Costco membership, you can get one for $50 when you sign up for the credit card.

If you already have a Costco membership, this card is a no-brainer. Why not get high cashback on all these things for free?

As an advertiser of American Express, CreditCardForum is proud to feature this special promotional offer for our readers: