I use Best Press rather than starch (which I understand doesn't make fabric as stiff as starch). I hand press my yardage after washing and drying, fold and put away. When I begin a project, I spray whatever length of yardage I'm using with the Best Press before pressing and cutting, and I spray and press throughout the piecing process. This will sometimes result in sprayed yardage going back on the shelf (if I've pressed more than I use), which doesn't concern me with Best Press; but I would be concerned with having starched yardage sitting on the shelf, in case it should attract bugs.