My Crocheter's Notebook has been a great tool to collect my revision process as I work through the cardigan design using different yarn weights, hook sizes, and stitch patterns to construct the sizes I want. My goal is to develop three size ranges in worsted (4), light worsted (3), and light (2) yarns. It will require hours and hours or work. Different yarns and yarn weights produce a variety of results. The basic pattern and process can remain similar but it is the fine tuning that allows for the pattern to be used across multiple sizes and yarn weights. Fit, feel, and details are important to me and I am willing to fiddle to get what I want.
Links for size charts that I found:
Baby Size chart from Craft Yarn Council
Children's Size chart from Craft Yarn Council
Shoe size chart from Hectanooga1
Pinterest board with additional resources from