As a reader discovered, Walmart offers preorders of the Mtn Dew Amp Game Fuel 16-oz. Can 12-Pack in several flavors (Charged Cherry pictured), bundled with beta access to Tom Clancy's The Division 2 for PlayStation 4, Xbox One, or PC, and a Bonus Prize Pack, for $19.99 with free shipping. That's list price for the upcoming soda, but you're getting some time-limited extras with your preorder.
You'll need to register your purchase here to access the beta when it goes live. The bonus prize pack includes a dog tag, whistle, light, compass keychain, baseball cap, and multitool. (The beta access is limited to the first 10,000 buyers, while the prize pack is limited to the first 1,000.) The Mtn Dew itself is due to start shipping on January 15.
With these companies, it might be easier than you think to negotiate your monthly bill down.