Are you going to "stitch in the ditch"? Then I highly recommend a walking foot. If you're going to free motion, then you need a free motion foot, I think also known as an embroidery foot. As far as keeping the sandwich together, some people like to pin with a "quilting safety pin", some like to baste, some people spray a basting spray like 505, some people tack on their machines. It's all in what your comfort level is. Hope this helps.