For its newsletter subscribers, newegg offers the LifeProof Waterproof Case for Apple iPhone 4 / 4S in Black for $79.99. Apply coupon code "EMCYTZT2120" to drop it to $49.99. With free shipping, that's $2 under last week's mention and the lowest total price we've seen. (It's a current price low also by $2.) It features 6.6-foot drop shock protection; it's also waterproof to depths of 6.6 feet. Deal ends August 29.