This is to redeem myself from the April 13th evening class disaster.
Learn how to set up your loom for double weave.
You can:
Double the sett (2-10 dent reeds = 20 dpi weaving!)
Weave 2 Layers at the same time.
Double the width (20" loom will weave 40"!)
Weave a Tube (lots of uses---shrugs, no-sew totes/bags, etc).