Rag quilts are a great quilt-as-you-go project! Rag quilts have 3 layers, just like a traditional quilt. Most rag quilters like to use flannel, homespun or denim because they bloom very well & give a full raggy seam. The quilt below is 3 layers of flannel. Just like in any quilting method, there are lots of ways to approach this quilt. I like to cut my blocks the same size for all layers.