I bet a lot of you reading out there are already carrying some reward credit cards in your wallet to help you get 5% back on purchases like groceries, gas, and other everyday items. And chances are that if you have a plethora of cards that at least one of them was issued by Citi. Whether you have the Dividend Platinum Select, Diamond Preferred Rewards, mtvU Platinum Select, or another Citi card, your card grants you access to a slew of rewards from more merchants than you may realize.

Thanks to Citi’s ThankYou Network, your card can earn more than just the typical 1% cash back at a variety of stores even if they don’t fall under the bonus reward categories associated with your card. You can earn as many as 15 points for every dollar you spent on purchases with some of these places. And if you aren’t familiar with Citi’s reward structure, you can trade in those points for electronics, student loan rebate checks, and gift cards for many restaurants and shops. (Usually I stick with getting gift cards since you can trade in 5,000 points for a $50 gift card–the best ratio of points to reward value Citi offers.)

If you have a qualifying Citi card, you are automatically enrolled in the Citi ThankYou Network, and you can start earning even more bonus reward points at over 100 different places at which you may already shop. Here are some of my favorites along with their reward points per dollar spent…

• 1-800 Contacts (4)
• Apple iTunes (3)
• Ice.com (5)
• Kmart (2)
• Linens ‘n Things (4)
• Montgomery Ward (7)
• OfficeDepot.com (3)
• OldNavy.com (4)
• Overstock.com (5)
• Payless ShoeSource (3)
• Restaurant.com (15)
• Sears Home Center (4)
• Shutterfly (9)
• Target.com (5)
• Wine.com (4)

Full List of ThankYou Merchants and Reward Points Offered