Driven Keys
Another thing we touched upon this week in Modeling and Rigging was Driven Keys. This is keying an attribute such as translate, or in our case visibility, to another attribute, allowing attributes to act as switches to control other attributes.
We practiced this with visibility switchers, often used in rigs to change between proxy and high detail etc.
This was another little quick technique to have a bit of teaching on in order to make rigs that bit better.