Originally Posted by Quiltforme
You don't need the walking foot to piece the quilt you can use your basic foot. The walking foot helps with quilting the top and bottom to give you a better feed through the machine.
I've also used the foot that I do blind hemming with. It has a little piece of metal that follows along the seam and opens it up for stitching. Only thing is, it doesn't work as well as the walking foot to feed the fabric evenly. But is surely helps with stitching in that ditch.