I love vintage linens — especially pillow cases. The older cotton pillow cases were made of such a higher quality than the typical ones you’d find today. And, you can usually find a stack of these at any thrift store for less than $1.
Washed, with a small incision and addition of bias tape and voila — a garment bag to cover summer dresses during the winter, and coats during the summer. (Less dust, plus the pillow cases all lined up in the closet look rather pretty.)