Well, comments... I know that is good to use them to explain the code, but I don't like them, since I think that the programer need to be able to read and understand a code to be a programer.

The only text that I like to make is the POD for the module, explain how to use. But explain why I made some XS like that, etc... not. Is always better read all the code and understand it, and I never read the comments, they are alway bad, or is easier to understand the code.

The best comment that you can make are names that make sence for variables and functions/methods (sub). And of course, use a structure/flux for your code that make sence too.

Graciliano M. P.
"The creativity is the expression of the liberty".