The Crochet Box Stitch really comes into its own when worked in rows of graduating colors, or in alternating colors. From baby blankets to Ponchos, Afghans, and pillowcases, there's not much you cannot create using crochet box stitches.
Learn how to crochet spiral granny square with this video. All the process is well described and understandable. This spiral granny square uses four colors. If you join them together you will end up with a lovely blanket.