Old Navy just announced that they will have a special promotion for this weekend – Buy any 1 item and get the 2nd item 75% off. This is only in-store and good from Thursday September 22nd- Sunday September 25th. It doesn’t look like there are any exclusions (at least that I could find), so this should apply to all the items in the store. Just make sure you pick 2 items the same price, so that you maximize the savings.
I also noticed that my local Old Navy store (South Hill Puyallup) is offering an extra 50% off of Women’s Clearance Apparel thru Sunday. It’s a good idea to see if your local store is found on Facebook & follow them for updates on their sales/discounts. You might want to call & see if your local store will be offering an extra % off of clearance as well.