McDonald's is gearing up to announce two additional sizes of the famous Big Mac. For a limited time you will be able to get a Mac Jr (smaller than normal Big Mac) and Grand Mac (larger than normal Big Mac).
So, to celebrate McDonald's is going to give away 10,000 bottles of the Big Mac Special Sauce. Select locations will be giving away the bottles starting tomorrow (January 26th).
What you need to do is download the McDonald's Big Mac Special Sauce Finder in the app store, which will then lead you to the location where you can snag a bottle of sauce fo free!