++ for comments. I know I have not yet learned or used pod properly, so I'm a big hairy hypocrite, but for public code I think it would be useful. It is a 'standard' that other people will be able to follow if they have to maintain your code and the pod can be extracted easily for the standalone documentation.
And don't forget the <readmore> tags for posting long messages in the monastery :)
How can you feel when you're made of steel? I am made of steel. I am the Robot Tourist.
Robot Tourist, by Ten Benson