![Gas - Take advantage of your credit card](https://i2.cdn.turner.com/money/galleries/2008/pf/0806/gallery.inflation_beaters.moneymag/images/02_credit_cards.ce.jpg)
Forget it if you carry a balance: Rewards cards usually charge higher rates.
Potential savings: Up to $200 a year
NEXT: Gas - Get rid of the guzzler
Last updated June 13 2008: 10:48 AM ET
Forget it if you carry a balance: Rewards cards usually charge higher rates.
Potential savings: Up to $200 a year
NEXT: Gas - Get rid of the guzzler