So, got bored of the typical letter that has to be folded in four to fit an envelope?!
Let's save trees!
& be original (:

Step 1: Get All Together!

* Hands
* Sheet of paper/ Letter
Note: the size of paper used in here is A4 or the usual paper that everyone uses! :D

Step 2: Let's Start Folding!

So, here it goes guys:
[Straight up the sheet of paper so it looks as in the image]
First:
Fold in triangles the upper parts of the paper
Second:
Fold in triangles the lower parts of the paper

It has to look like in the last image, all the 4 cornerns are in triangles (:

Step 3: Uhm? More Folding!

Now, fold eehm.. how to explain it!?
see the images above (:

Then, see the triangles that got shaped from the last folding?
Guess what?
Yes, fold it AGAIN to the center (:

Now, you will have a rectangle as seen above.
Turn it around & we will KEEP ON FOLDING (:

Note:
I thought it was going to be a lot easier than it was to explain it with words (:
So I REALLY hope that the images help you understand what I meant! :D
Contact me if there are any doubts
ArcticLiz