|I was having problems making bias strips. I couldn't seem to get them straight, and my fabric would shift all over the place. What a pain.
So what I did was made a template (or pattern) from heavy interfacing. I made it 1 and 1/2 yards long, by the width wide. Now I can just pin the strip of interfacing to the fabric and cut away. I didn't have any problems with it moving and shifting, so I had a perfect 2 inch wide strip when I was done.