Look between the cushions of your couch, dig deep in your jeans pockets and consider stealing a few coins from your little sister's piggy bank - McDonald's is giving away their mouthwatering Big Macs for just $1.\nThe burger, which normally comes in at $5.97, is available at any participating McDonald's in Ontario and Atlantic Canada. The catch is that you have to download the My McD's app on Android or iOS, but the good news is that it's really easy to do. And let's be honest, a 2-second download in exchange for a $1 burger is a pretty good deal.\nAll you have to do is create a new account within the app to view the offer (it's usually under the "Offers" section). Then just display the QR code to your cashier or at a kiosk. That's it. In a few seconds, you'll have a big, juicy Big Mac in your hands and you'll only be $1 poorer.\nThe offer is also redeemable through mobile ordering in participating regions.\nvia @mcdonalds\nThe offer is only available until December 24th, so if you want your Big Mac you'll want to download the app asap.\nThere's a limit of one coupon per customer and it cannot be combined with other offers. Happy eating!