Someone discovered a genius way to utilize a McDonald's french Fry Box.
No more using soggy napkins to hold your ketchup.
Check out this lifesaving hack: https://www.msn.com/en-ca/news/offbeat/someone-discovered-the-real-purpose-for-the-mcdonald%e2%80%99s-french-fry-box-flap-and-twitter-is-conflic