Target has a deal with Sobe Lifewater at the moment. They are 10/10 and when you buy 10 they give you a 5.00 gift card for your next purchase!
There are some BOGO coupons here:
You can print two of those, getting 10 for 8 bucks, and getting the 5 dollar gift card back. If you have access to more than one computer, you could make this a REALLY good deal.