Discover cards are pictured in Overland Park, Kan. Thursday, June 23, 2011. Discover Financial Services said Thursday, June 23, its second-quarter profit more than tripled as customers used their ... more 
Discover cards are pictured in Overland Park, Kan. Thursday, June 23, 2011. Discover Financial Services said Thursday, June 23, its second-quarter profit more than tripled as customers used their cards more and got better about making payments on time. (AP Photo/Charlie Riedel) less 
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Associated Press | Photo By Charlie Riedel
Thu, Jun 23, 2011 2:09 PM EDT