The name Discover is often associated with the top credit card issuers in the United States. Since the Discover card was first introduced in 1985, customers have been drawn to its various reward programs. Following is a closer look at a few of Discover's most popular credit card picks among consumers today.

Discover More Card

With the Discover More Card, the rewards start off with a 1% cash back bonus. You'll earn this every time you use the card for ordinary purchases. By shopping at certain places, such as department stores, gas stations, and restaurants, you can qualify for 5% cash back. Using the card toward travel expenses can also bring in 5% cash back.

By using the card at ShopDiscover, which is Discover's online shopping site, you can earn 20% cash back. To do this, you'll want to buy from merchants such as Eddie Bauer, Lego, and Sears, among others.

This card also comes with a 0% interest rate for the first six months. A 0% APR also can be used toward balance transfers for the first year. There's no annual fee with the card.

Before applying, it should be noted that the cash back rewards are offered on a scale. You'll receive only 0.25% cash back on the first $1,500 that you spend on the card. Then from $1,500 to $3,000, you'll earn 0.50% cash back, and when purchases exceed $3,000, you'll earn the full 1% cash back.

Discover Open Road Card

The Discover Open Road Card caters to those with long commutes who want a break on gas prices. The card offers a full 5% cash back on all gas purchases. It also includes an initial 0% interest rate for the first six months. After that, the regular interest rate will kick in. This is a reasonable rate compared to other gas rewards credit cards.

In addition to the gas rewards, this card gives 5% cash back on car maintenance purchases. For those that shop at Discover's exclusive online shopping site, they'll receive up to 20% cash back through retailers such as the NFL.com Shop, Hotwire.com, Lego, and more.

Once the rewards begin to add up, you can start redeeming them. You'll be able to begin once you have $20 in cash back bonuses. If you choose to receive your rebates through retailers that participate in the Discover program, you can earn up to double the amount of cash back.

Miles by Discover Card

The Miles by Discover Card is a travel rewards credit card. Through this card, you get the chance to book trips at any time, as there are no blackout dates. You can choose any travel destination you'd like.

You can start building up miles by making purchases. You'll receive one mile for each dollar that you spend. The number of miles you build up is unlimited as long as the account remains active. And you'll earn double miles on both travel and food. There's no annual fee with this card.

Most of the cards issued by Discover include several perks that appeal to customers. To get the most out of your Discover card, look through the details carefully before you sign up. Then set up a system that enables you to get cash back, gas discounts, or travel benefits.