It's me, Cre8, who has my quilt picutred all over the kitchen floor (after it was mopped).
As for cutting out different sizes of fabric for blocks, some of us (including me) are doing 10in (finished) blocks, and I cut my background squares 11in so I could trim a little after the applique. I have a feeling most of us are either doing 10in or 7in, but perhaps one is doing 9in?
I have just measured my quilt and it came up at 92in square, but that is because I cut my larger border a bit bigger than just enlarging it by 142% (it measures 11.5in wide). Anyhow, it's big enough to cover my bed nicely and not drag on the floor so I might fall over the corners.