How-To create templates for individual posts using WordPress
I simply adore stuff like this. While it took me 15 or 20 minutes to figure out what they were talking about, once I did it was both elegant and easy to replicate. Open Source Rocks!
WordPress does not make it easy to create a template for a single post.
In my case, I needed the first post in a category to have a special link for the “previous-link” navigation. Additionally, the last post needed the same link for the “next-link” navigation. (Normally, the first post would have a blank right navigation since there is no previous post and the last post would have a blank left one since there is no next post.)
In order to create a category template you have to name the template file category-n.php where “n” is the category ID. [Hint: Select Manage > Category > Your Category and then look at the URL - it will contain the category ID!]
Well these guys figured out how to do the same thing by creating similar category templates and then assigning your post to that category. The >>REALLY<< cool and elegant thing is that the "update" by Austin allows you to place a post in multiple categories (the real one and the template one).