I had ordered Ginny's kit for the Border Print Tote Bag, and I did have some fabric left over when the bag was completed - not an overabundance, but certainly enough to fix a screw-up if it happened.
Wish I could speak to the quilt kits also, but I have one in my stash I am pretty terrified of starting - only kidding, just haven't had the time! It's the Kaleido-Krazy Kit. That design is just gorgeous.. I hope to complete it before this year is over.