Since being seduced into the world of phones that cost more than lunch, I've come to count on the peace of mind afforded by the Lifeproof case I got for my iPhone 5. It adds shock resistance, protection against rain or even dunking, and a much more secure grip on the phone—the last of which which lessens the chance that you'll need the first two.
Now Lifeproof is adding even more peace of mind with their Total Water Protection Program, a guarantee that as far as I'm aware is the first of its kind. For one year you get free one-time repair or replacement of your iPhone or iPad if it sustains accidental water damage while in a Lifeproof case. That's a pretty bold step, and an indication of the confidence the company has in the product.
It's particularly impressive given how compact and unobtrusive the Lifeproof case is to begin with. Within a few days I'd forgotten my phone was even enclosed, and I have no trouble at all operating the phone through the screen.
For more information, see the Lifeproof website HERE.