Water deals are hard to come by, but when they come, be sure to stock up.
Ice Mountain Aquapods 8-packs are on sale for $1 at Jewels. Buy 2 and use the $1.50-off-2 coupon from the 8/29 RP insert. You'll pay .50 for 2, or a quarter per 8-pack! This sale runs through 9/5.
After you do the math you are paying $.03 a bottle. GREAT DEAL.
If you live in Chicago, you will have to pay water tax. I just go to the nearest suburbs to pay the regular tax.