I am embarrassed to admit that I made such a stupid mistake. I am just starting out but have been building up my stash and owned my sewing machine for years. But, I read some books and thought I knew what I was doing. I'm making a patchwork quilt. I bought the backing and washed and cut and assembled that along with all of the patches for the quilt-top. Then I made the sandwich with this fusible batting I found at the store (ironed it all together without stitching anything). Now, I'm starting to realize that I skipped the step of sewing the top patches together before quilting the entire sandwich together. I do have to sew the top together first, right?