McDonald's 'trick' can save you 50 per cent on your order every time. (PA)
McDonald's is one of the UK's most popular fast food brands with more than 1200 restaurants.
The Big Mac, the Quarter Pounder, the Chicken Legend, McDonald's is the go-to fast food chain in the country.
The affordability of their meals is one of the company’s major selling points.
But now you can reduce the cost of a McDonalds staple - Big Mac and fries - by more than half, using a simple trick.
In order to take advantage of the offer, you’ll need a receipt issued in the last 60 days from McDonalds for any purchase.