Don't forget ladies plus-size shirts and skirts! If you have shirts at home prior to cutting lay them on a bed or floor next to each other. Cross the sleeves across the chest. See how many shirts it would take for the top. That will give you an idea for the number you will need. The sleeves and tails will be extra material. I always go for as many xx as I can. Just don't forget the ladies plus sizes. Gathered cotton skirts have lots of material.