Check out your dollar general store. See if they have "The Most Stuf" oreos. If they do, get the app and download the digital coupon for Buy one Get one. The store also has their own sale going on for Buy One Get One.

If you get one package of "The Most Stuf" and one regular sized package of the original ones, it comes out to 2 PENNIES.

I did it twice, so it definitely works.

Tip: Most stores dont have the Most Stuf ones in the aisle with all the regular oreos, they're on the end caps in a display.