Super Cash Event at Old Navy Spend 20 get back 10

Old Navy has announced a Super C-A-S-H event via Facebook! Earn $10 in Super C-A-S-H for every $20 you spend until 8/18 in –store only. Earn up to $50 of Super C-A-S-H per transaction. Then, redeem $10 of Super C-A-S-H for every $20 you spend from 8/25-8/29. In-store only.  I am loving this deal… it is like making your own 50% off sale!
Eligible purchases include sale, regular and clearance merchandise (“Eligible Purchases”) but exclude gift cards, packaging, applicable taxes and prior purchases.  Super C-A-S-H is calculated after sales and discounts.