I keep a "picnic" quilt in my car all of the time. I can use it any time for a ball game, spontaneous event that means sitting on the grass or heaven forbid an emergency when I must be in my care for a long period of time. I made a scrappy quilt just to use up odds and ends and practiced my quilting skills then into the car it went. No, big deal to let it ride in my car until needed and I have used it several times already.