If you reside in North America, or at least have a North American PSN account, check the email associated with your NA PSN profile as you’ll likely find an early Christmas present from Sony. Unfortunately it’s not a free game or free PS Plus, but it’s something all the same.
North American players are being treated to a decent 20% off voucher from Sony. All you need to do is rummage through your emails and find any from Sony. You should get an email informing you of the current offers on the PlayStation Store and with it comes a 20% off code that can be redeemed at the checkout stage on the PlayStation Store. Not bad, eh?