Well over a year ago I had made the final adjustments to my t-shirt pattern. I usually draft my first patterns on medical examination paper
Pieces cut in tag board are put on pattern hooks and then on racks. I prefer punching a hole in the pattern with a smaller hole punch so I can use book rings. The book rings are used to hang all the pieces of a style together but make it easier to remove one piece from the collection. The pattern hooks can be looped around the book ring and then hung on a rack.
*There are different work flows for pattern making. This is mine. Some professional pattern makers do all of their pattern making directly on oak tag and some are CAD only. Also, I do things a little differently in my home studio versus work. For example, the t-shirt pattern pieces are cutout in half because I place the piece on the fold at home. This would not happen in a factory. Generally, a production ready pattern would be the full piece (left and right sides) and not placed on a fold. It's not always so simple though. The pattern pieces are created to meet the specs of the fabric and production facility so variations may exist.