Still need some back-to-school clothes for the kids (or you)? Save 25% at Old Navy with a new coupon! Head to the Old Navy Facebook page and look for the post that says “Just because.” Then click on “get offer” to have the coupon sent to your email. The coupon is valid 8/23 – 8/26, in-store and online. To use in-store, just print out the email or show the staff your phone. There are some exclusions, so read the fine print carefully.