I am almost finished with a retirement quilt for a friend retiring in May and thought I could make a gift/storage bag from the scraps. I remember from another thread that many of you make pillowcases or other bags for your quilts. Do you recommend a flat, pillowcase type bag or something more like a grocery tote bag. Do you line your pillowcase/bags or leave them a single layer.The quilt is 46" x 71", something with which to curl up on the couch. In fact, she gave me a swatch of her couch fabric to use to coordinate the fabric. I may need to use additional fabric, maybe a solid, depending on the size of the bag. I really appreciate your input.