So far the comments tell me no one pre-washes their fabrics any more. Interesting.
Are none of you bothered by all the chemicals in your fabrics? Formaldehyde is used in making fabrics, and I can sometimes smell the reek of chemicals on my not-yet-washed fabrics. When I worked in a fabric store it took me 2-3 weeks before the smell didn't set off an allergic reaction.
Fabrics aren't that clean when we buy them either. They are sent to the US in huge cargo containers. They are shrink wrapped, but many times there is a tear in the wrap before they get to the fabric store. Cargo containers aren't all that clean.
Different cottons shrink at different rates. I mix many plaids and homespuns with my prints when making a quilt top. I've found that homespuns shrink differently than prints - often more.
I find hand quilting unwashed fabric to be harder on my hands than quilting washed fabric. Many of my quilts are machine quilted, but I like to hand quilt the little ones and utility quilt the primitive tops.
So I presume all of you who don't wash first to be non-allergic quilters who machine quilt (or pay a longarmer) and never use homespuns. Is that correct?
I'd love to hear from more of you - especially those who still pre-wash their fabrics.