At Old Navy, buy one boys’ or girls’ uniform apparel item and get a second item of equal or lesser value for free via coupon code “BOGO” as part of its Early Back-to-School Sale. Shipping adds $7, but orders of $50 or more receive free shipping. Some exclusions may apply. Eligible items include shirts, sweaters, pants, shorts, dresses, and skirts. Coupon ends July 23.