I prewash all fabrics as soon as I bring them home. I use cold water tide for everything I wash. 2 or 3 yards I dry separately on low and dry them until dry. I lay on dining table smooth fold smooth then fold them using a 6x24" ruler and smooth as I fold. When I am ready to use them only the fold really need to be pressed.
I don't buy any precuts.
My washer keeps machine balanced.