$12.23

10 boxes cereal
10 toothbrushes
3 packs of pampers
3 boxes of fruit snacks
1 box Electrasol
1 box Cascade
2 bags of bows
2 chocolate bars
4 bottles of Children's vitamins
11 bottles of shampoo/conditioner/mousse/gel
1 jumbo pack TP
2 packs of Stayfree (not pictured)

This is a number of different transactions. The combination of 6 boxes of Fiber One cereal, 2 chocolate bars and a box of fruit snacks costs us $0.26. We could do it indefinitely because it costs $15.26, but we get back $15 in coupons good for the "next transaction" (which we just use immediately) and so we can just do it over and over and over...