Nice pic, Bev! I used your link and had some 'snow' and 'flashing' digital squares problem, but was interested to read the article despite my technical problems. I'm putting together a scrappy quilt with this method too. My squares are 18". I started sewing orphan blocks together. If the block I use isn't the right size, then I just add a border to it. I'm not sure how it will end up, because it's easy to mix and match and decide something else improvisionally! But, so far, I'm very fond of it. It might be my favorite when it's done.