Hurray Old Navy Groupon pay $10 for $20 of merchandise!

Old Navy together with Groupon is selling vouchers of $20 for $10. These sell out fast, so may sure and hurry HERE to get yours. I'm using mine for the end of year clearance. It needs to be used in one purchase and expires January 28, 2012; however, the $10 never expires. Deal ends December 24th at 11:59pm.