Step 2: sewing
Set your machine to a long stitch length - anywhere from 3 to 4. Make sure you have long tails on the thread in the machine.
Sew one straight line 1/8 inch from the edge of the fabric. Don't backstitch at the beginning or end and make sure to stop sewing right at the edge of the fabric so you don't get any knots.
Then sew another line another 1/8 inch in from the line you just finished.
Leaving long lengths (3-4 inches at least!) of thread at both ends of the fabric is vital to your success here, as well!