3. Unique Heddles
When threading your loom, it's easy to mix up a heddles from different harnesses as you are often only relying on depth perception.
I have a 4 harness loom with metal heddles. When buying more heddles for a rug project, I bought a different style, and then set up odd harnesses with one style and even with the other. This helps me catch threading mistakes as each harness is distinct from its neighbor.
#weaving