Does it make sense for us to have a [tag:canonical] tag on non-meta to flag the canonical questions with?

I know that, for me, it would be easier to search for that tag than search for and reference the [Canonical Canonical Question](http://meta.serverfault.com/questions/1986/what-are-the-canonical-answers-weve-discovered-over-the-years).

**Update**

Sounds like a good idea.