Coupons.com recently released its "The Most Frugal U.S. Cities" report, ranking the top 25 couponing cities in America. The five top cities for couponing are:

1. Atlanta
2. Tampa, Fla.
3. St. Louis
4. Cincinnati
5. Raleigh, N.C.

Which coupons are the most popular?

The bulk of redeemed coupons -- 89% -- are still clipped from newspapers, and Internet coupons represent only 1.5% of those used, according to Coupons.org, but that's changing quickly. In 2011, 20% of smartphone users took advantage of mobile coupons, a 117% increase over 2010.

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