Old Navy Coupons

Ok this is a pretty cool site... OldNavyWeekly ... this is a site that is weekly updated with hidden coupons. From what I can tell it is updated every Thursday. It has been reported that they have had $75 off $100 purchase coupons - that would be amazing! I was just on there and found a $5 off $25 purchase and $5 off buy 1 adult shorts and 1 kid shorts. The other day I found a 30% off entire purchase! Sorry they only work once so I can't share them :-(