You can head over HERE and get a 25% off coupon for Old Navy through January 14th. Just click on the shoes for all three of the mannequins on the right side. The shoes will turn pink and you can get your coupon!
If you prefer to shop online, I just checked and they are having a 75% off sale right now! I bet you can find some seriously good deals. It looks like the spring stuff is already out so winter clothes should be at great prices!