Step 1: Dimensions
Step 2: Making the template
Step 3: Creating the template
Step 4: Using the template
Step 5: Scoring
Step 6: Write your letter.....
Don't forget to tell the reader where you found the cool design for the envelope ;o)
Step 7: Make the first fold
Take your time. You don't want to get this bit wrong or else you'll have to write your letter again ;o)
Once it looks like the picture, smooth down from the bottom edge.
Step 8: Second fold :o)
When you've finished it should look like the picture.
Step 9: Third fold. Nearly there.
You can probably see where it's going now. I'll leave you to figure out the last fold. Saves me having to draw another picture.
Happy folding and remember, everyone likes to get letters....