After setting my dress form, I dug out my original mock-up and mapped out the measurements I needed. The basic pattern, as with all of my dresses and designs, was layed out only in my head. I needed a circle skirt and slightly lowered boatneck bodice as the base of the dress, and from there I would add the swayed chiffon bodice, sash and skirt pieces. One of the neatest little sewing notions that was given to me about a year ago has helped me immensely; the Clover Chaco Pen. That little pen is actually full of tailor's chalk and has a flat head with a rolling metal dispenser that makes it incredibly easy to mark curved and straight lines that run along the ruler. I highly recommend purchasing one.