Sweet deal gets even better via American Express SimplyCash

A wrote a little while ago about the sweet OfficeMax OPEN deal, where you can get over 7% back on all your spending.  This deal is even sweeter than I thought.  Using the American Express SimplyCash card, you can get an extra 5% back because OfficeMax.com deals do qualify for bonus category spending.  So in total, you can earn 15% back on gift cards, 11.2% back on all other spending (10% back from OPEN+ 5% from SimplyCash).  Thank goodness my readership is small, because this is one of my best discoveries ever!