I agree with what others have said in regards to your questions, but I have a suggestion for your last question. If you're talking about binding the rag quilts, you really don't have to. You can sew around the outside on the quilt just like you did on the blocks, making sure all layers are trimmed to the same width, then snip them so they will 'rag' like the rest of the quilt. Although having made a couple of them myself, I think I'd rather bind than cut all those short little snips around the edge.