Learn to chain ply as you spin! No only does this mean you do not have to go back and ply later but it is a technique that allows you to maintain the color gradient or order of hand dyed fiber. You end with a 3ply yarn.
You should already know how to spin and be comfortable with your spindle.
You will need a drop spindle and fiber for spinning. You will love this technique more if you use a fiber that has long color changes or a gradient. The instructor will have some fiber to purchase.