Originally Posted by QBeth
A walking foot is designed to keep the bottom layer and the top layer moving along at the same pace. Think of a walking foot as an upper set of feed dogs.
I use mine for just about everything but FMQ, where feed dogs are not needed.
This. My machine (Pfaff) has a built in walking foot that I use all the time. The only time I can't use it (other than FMQ) is when I use the programmed decorative stitches. I know some machines sew the deco stitches with the walking foot, but mine can't, which gives me some difficulty when I want to use a stitch for a binding.