Because of intense competition in the credit card industry, credit card providers often offer incentives such as frequent flyer points, gift certificates, or cash back (typically up to 1 percent based on total purchases) to try to attract customers to their programs. However it should be noted that the incentive is insignificant to the interest charged for carrying a balance.
Low interest credit cards or even 0% interest credit cards are available. However, services are available which alert credit card holders when their low interest period is due to expire. Most such services charge a monthly or annual fee.