Next to all the other dish tablets, find the 3 pack trial size $0.97. Use the $1/1 Cascade (no size restrictions). Not only do you get the item for free, but Walmart's coupon policy states if there is an overage from your coupon to the item, you can apply that amount to either other items in your cart or the overage goes to the customer (from my personal experience, I would apply it to other items in your cart).
Cascade 3 pack Trial Size $0.97 $1/1 Cascade (no size restrictions) P&G (they come out monthly)
Final Price: FREE + $0.03 money maker