Great ideas out there! Here's another one. Not only did my pedal keep moving but I needed to have it slightly raised because of my height. A few years ao, DH took an old metal computer printer stand with a slanted angle (higher in the back and lower towards my foot) to it. He placed a nice piece of wood with a short lip across the bottom so the pedal would not slide off. I put a piece of sticky shelf liner to keep the pedal from going sideways. It's been a Godsend and I have taken it to a couple of quilt retreats.