I sewed my Economy blocks into strips a couple of days ago, and then stalled. I really don't like putting sashing together without corner posts, and I let that put me off. I read somewhere that some quilters actually use corner posts of the same fabric, so that the seams are easy to align, but it's all the same fabric; yes that works, but I couldn't bring myself to do that either.
I bought this book for Mereth for Christmas, and promptly borrowed it back.
I have two other fabrics that would work for the sashing if I'm not brave enough to use the solid.