My friend Pamela Vanderway, aside from being an outstanding dialect coach in Los Angeles, is also a fountain of ideas. On her blog Dialect 411, Pamela wrote about a topic that every person who uses their voice for a living should read and take to heart about vocal rest.
Singers often know about the concept, but people who talk for a living may not, unless they have had a shoot or session that required a lot of shouting or screaming. Pamela goes in depth about what it is, the reasons for vocal rest, and the best ways to achieve it. Even if you never stress your voice in this manner, you will learn a lot about the vocal mechanism and how to take care of it.
But don’t just take my word for it. Go read her post right now, and subscribe to her blog. You are missing out on a great person and a wonderful resource if you don’t.