Okay here we go:

1. Assemble your supplies. Print and cut out your paper pattern.

2. Pin your pattern to your fabric. If you are using a stripe fabric, be sure to line your pattern up so your line is straight.

3. Cut out your bag shape and remove the paper pattern. Turn your bag over so you see the wrong side of the fabric.

4. Mark on the wrong side your 1/4" sewing lines. You see them as tiny dots on your paper pattern. Use a small ruler and a pen, be sure your ink does not show to the front, test it on scrap first.