Thanks for the tips.. It is cold and rainy here today, so they won't be going out in the sun, but I might try the ironing then weighing with books technique!
Well back to unpacking and organizing my sewing room. I FINALLY managed to get all my fabrics (well there are still a few straglers) folded and put away in the cupboards. I'll take photos once it looks a little more presentable!
Cheers!