Last time I was at Walmart they had Mio Water Enhancer Liquid priced at just $2.48! There is a $1/1 Mio Water coupon available to print out that will make these just $1.48!
Here is the deal:
Buy (1) Mio Water Enhancer $2.48
Use the $1/1 Mio Water coupon here
Final Cost $1.48
(prices may vary by store)