I agree with the above - that's the reason I abandoned the gingham check quilt I had started several months ago. The light weight fabrics tend to go bonkers even if they are starched. I had some on iron-on stabilizer and they went bonkers on me even then. I thought I was being so careful with them. I have recently found that buying fat quarters at the BIG J store results in the same quality of fabric - some are so thin that you can read a paper through them - so they stretch and refuse to lie flat as they should.

I am totally empathetic!