Get 25% off your entire online purchase at Old Navy with coupon code: ONAUTUMN at checkout! Offer valid through October 22, 2011. Plus, they have further increased the savings on their Fall Sale up to 50% off. Combine these two offers for a great deal! Remember that Old Navy has everyday free shipping on any order over $50.
Or if you want to shop in-store, then get 20% off a single item with this printable coupon here.