All4Cellular offers the OtterBox Defender Case with Holster for iPhone 4 in White for $14.95. Coupon code "A4C1A2" cuts it to $14.20. With $2 for shipping, that's tied with our mention from a month ago and the lowest total price we could find by $13. It features a clear protective membrane for the touchscreen plus openings for the camera lens, dock connector port, and home button. Deal ends January 18.