I use the liquid starch in the blue plastic bottle, I think it's called Vano? I mix it 50/50 with water. Put it in a yard sprayer (about $15 i bought for this task ONLY) and holds about a gallon. I lay the fabric on plastic tablecloth and spray the inside of the fabric, roll it up and put in the refrigerator or freezer in a zip lock bag. Then when I want to do something other than sew I pull out a couple pieces and iron on the right side. works like a dream. If you want it stiffer, use less water.