How to Fold a Letter Perfectly

Hate it if you have written or typed a perfect letter and then when you fold it to put in the envelope you mess up and it looks bad? Well this is the perfect solution!

Pretty simple:
*Paper (any size)
*Envelope
*Pencil

Roll the letter twice so that the two ends meet. See the picture for clarification.

Make a mark there.

Unroll and fold the paper to the mark with the bigger side facing you.

Finish folding. Done, you have folded a letter perfectly!