You can find Old Navy coupons at OldNavyWeekly.com. The site makes you "look" for hidden coupons. There are some really high value coupons like $75 off $100 purchase in addition to the 10-20% off ones. It looks like they reset the coupons every Sunday AM. I imagine you must be up in the middle of the night in front of your computer and wait for the reset to get the high dollar value coupons.
Personally, I don't want to stay up that long. I just checked eBay and there are a few sellers with coupons for $50 off $100 purchase for $4-$5 with free shipping. I think that's a pretty good deal.
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