I haven’t sewn in over forty years, and also forgotten all the sewing techniques that I was taught in school. I bought a skirt in the local secondhand shop and unpicked it. I am in the process of turning it into a summer coat. But alas, the material is crepe de shine and I have inserted the sleeve. The instructions tell me to clean up the joins with bias binding but the material is too fine. I don’t have an overlocker and with the sleeves gathered at the join, could someone please help me in how to tidy the edges where the sleeve and coat seam join. I have blind stitched all the other seams, leaving a nice clean edge.