McDonald's fans can get their hands on a Big Mac and fries for £1.99 thanks to a simple hack - so long as they have a phone to hand. All customers can make the most of the offer as long as they print out a receipt when visiting a restaurant. As eagle-eyed shoppers will already know, McDonald's receipts explain how to complete the chain's customer feedback surveys online.
Simply follow the instructions - it will take a matter of seconds - and you'll be rewarded with a discount code for your time. The only catch is you'll need a receipt from a previous trip no more than 60 days prior, but that will still leave you with plenty of time to cash in on your reward.
