The cost: $.13
The take: 10 sobe lifewaters, one bottle of shout
The How: 4 sobe coupons here (press the back button your browser after each print up to four time), 2 target sobe coupons here plus a buy 10, get a $5 target gift card promotion. For the shout a $1 off Target coupon here plus a manufacturer coupon here and the checker using a second manufacturer coupon attached to the bottle (which she probably shouldn't have).
All over win! And now I'm not thirsty AND I have stain free clothes. Bonus!