I prewash everything except precuts, and I seldom buy those. I sometimes use steam, sometimes spray, sometimes dry, and recently when I had a lot of half-yard pieces I did the old technique of spritzing the fabric and wadding it up and placing it in a plastic bag before ironing. We used to do that with clothing before permanent press came out, and it still works great, so I'll do it again. I starch when I think it's necessary.