Amazon has the 18.4oz OxiClean Triple Action Dishwashing Booster on sale for $5.70, or as low as $4.85 with S&S. This is the lowest price it has been in over a year, the average price is $12.09. I’ve had good results using this in my dishwasher.
Walmart has the 11.2oz for $3.47 or as low as $2, but YMMV for price and it is in-store only, not available for shipping. You can order it for in-store pickup, or use Brickseek to check stock . At $3.47 the price per oz is approx the same as the Amazon deal.