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Chase Freedom and Discover credit card 5% Cash back categories for 2012
Chase - For 2012
Jan - Mar: Gas Station & Amazon.com
Apr - Jun: Grocery Stores & Movie Theaters
Jul - Sep: Gas Stations & Restaurants
Oct - Dec: Hotels, Airlines, Best Buy, Kohls
Please note that you need to activate cash back (sign up) for every quarter and you can do that up 15 days before the quarter begins.