How to make a paper origami box

Fold a triangle

Fold down the remaining part

Sharpen the fold a couple of times with your nail

Tear away the upper part

Now you a have a perfect square paper. Let's start folding!

Fold down in half

Open...

Fold in half from left to right and open

Fold the edges to the center

All four...

Fold up to the middle

Fold down to the middle

Open

Pull out the edges

Fold from left to center

And from right

Adjust like this

Fold up the upper part, the edges should fold into a triangle almost by themselves.

Fold inwards

Other side...

There you have your Origami Box

Now add notes and stuff and things

Make more boxes to store more things