first cute dresses
Second don't let one bad experience hold you back. On any of the clothing items I sell I attach a tag that gives care instructions. For the size you did as she requested. I think you were overly generous in giving her a free dress unless in fact the strap did come off the original one. Even then you could have offered to fix the original so you were more than kind to her! Not to mention she did not pay for your time just the fabric.