In this tutorial, we learn how to fold a t-shirt using cardboard. First, cut out a piece of cardboard so the it's 72 cm x 25 cm, and make sure it's completely flat. Next, place two flaps on the side of the cardboard and one underneath. Now, place your shirt inside of it and fold the top down, then the sides. After this, fold up the bottom and you will have a nicely pressed and folded shirt! This will save you time over folding the shirt by yourself and it will also come out more nicely than folding it by hand.