Archiving old pages

Hello everyone, I've looked around on the site and seem to have hit a nice little roadblock.

Drupal has the options sticky, published, and moderation for status of pages posted (nodes). These are great and I've been using them with the workflow module with few problems. What I want to know is if there is a way to have a 4th option called archived, so they'd be easy to find and reference on a yearly or monthly or whatever basis. Basically I'd like to be able to turn on and off nodes and have them have a seperate status from "unpublished" and "in moderation".

Any ideas?