Any tips on determining if a fabric can be washed? I'm debating if the draperies in my familyroom could be laundered vs going to the cleaners. They are large and there is a lot of them, last time I sent them out it was $300 - that was 10 years ago. They are semi sheer and unlined and feeling the material there could be a fair amount of polyester. These were custom made so obviously no care tag. They just look a little dingy but not terrible. I hang them out in the sun and fall breezes every year when I do fall cleaning, just not sure I want to risk tossing them in my FL.