Meritline offers the OtterBox Commuter Series Case for iPhone 5/5S in six colors (Black pictured) for $19.99. Coupon code "MLCX08ZN" drops it to $9.99. With free shipping, that's a buck under our December mention and the lowest total price we could find by $7. This case features two layers of protection, an adhesive screen protector, and access to all ports, buttons, and features. Deal ends May 9.