I began using paper but hated all the time spent removing it even though with small stitches it comes out easily. Then I used cheap muslin but have been using a product called Easy Pattern the past few years and like it much better. Easy Pattern is used to transfer multiple sized patterns. It is a non woven similar to interfacing You can leave it in the finished quilt and it is less than half the weight of muslin. And less expensive than muslin too! Cut the Easy Pattern a bit larger than finished size and trim to size when fully covered. My personal favorite and we use it all the time to make tons of Quilts of Valor string blocks.