I love string quilts. I commonly see folks posting thrifty tips about using used dryer sheets for applique or string quilting, but it's not a great idea. The chemicals and fragrances can cause allergy problems, and no one would ever think the trigger was Inside the quilt! This could cause unnecessary medical tests and treatments, and could even be life threatening. Unscented dryer sheets still contain other chemicals. If the quilt goes to someone with recent surgery an unexpected cough or sneeze could rupture stitches. Dryer sheets might not be a problem for you, but who gets the quilt after you? I'm a retired Nurse Practitioner, and have mild asthma. I wonder if the chemicals will degrade or discolor the fabrics as time goes on. I'd recommend using clean white sheets or lightweight interfacing for stabilizer instead.