Today only, A4C offers the OtterBox 1000 Waterproof Case in Black (pictured) for $7.95. Coupon code "DAD10" cuts it to $7.16. With free shipping, that's the lowest total price we could find by $3, although we saw it for $2 less over a year ago. This floating case is waterproof (up to 100 feet) and impact-resistant. It measures 4.8" x 3.6" x 1.6" on the outside and 3.7" x 2.3" x 1" on the inside.

Also available is the OtterBox 2000 Waterproof Case in Black for $9.95 before the above coupon, $8.96 after. With free shipping, that's the lowest total price we could find by $7. It measures 6.8" x 4.5" x 1.8" on the outside and 5.7" x 3.1" x 1" on the inside; it's designed to carry a small camera, wallet, MP3 player, or small cell phone.