My pet peeve from the perspective of working in a quilt shop: people coming into the shop for backing who do not know the measurements of their quilt or how to determine how much backing fabric to purchase. Or those who come for backing and do NOT bring their top or know the measurements expecting you to determine how much backing fabric they need and expect you to figure it out for them. If you have quilted for some time you should be able to determine how much backing/binding fabric to purchase. Thank you for letting me get "that" of my chest:-)