Folding a bit of paper into thirds is a straightforward but helpful ability that can be utilized for a wide range of functions, from creating envelopes to creating origami. There are two fundamental methods to fold a bit of paper into thirds: the accordion fold and the tri-fold.
The accordion fold is the commonest method to fold a bit of paper into thirds. To do that, begin by folding the paper in half lengthwise. Then, unfold the paper and fold either side in in the direction of the middle crease. Lastly, fold the paper in half once more alongside the unique middle crease.