Gather one square sheet of paper
Fold the paper in half diagonally both directions to form crease lines
Fold the paper in half once vertically and once horizontally to form crease lines
Unfold the paper
Fold the top corner to the center point
Fold the bottom corner to the center point
Fold the left corner to the center point
Fold the right corner to the center point
Fold the left flap over toward the center
Fold the right flap over toward the center
Fold the bottom flap upward to cover the flaps
Fold the top flap downward to form the closure
Adjust folds so edges meet neatly
Crease firmly along all fold lines
If needed, add a small strip of tape or glue to the sides to hold it closed