Glad most of you do as I do wash fold and store. I HATE ironing but never never use unwashed fabric. I usually soak in very hot water for at least 30minutes. I fold the fabric into the water, squeeze fabric and then hang on the line. If they are dark fabrics I hang with the back of the fabric showing. I don't own a dryer, don't need one. I live in the Sunshine state. Seeing a line of clean fabric is better than a line of clean sheets.
Once I've washed fabrics I cut corners with pinking shears, then if unwashed fabric accidently gets mixed in I know what has been washed. No sense washing twice. If a new fabric has a strong chemical smell I hang it in the sun for a day or two and it usually goes away. If the smell is still there after 2 days in the sun I'll soak in prewash powder.