In its simplest form, a module is nothing other than a regular Perl source that has a package Module::Name; somewhere at the top, ends with a statement that returns true (usually a simple 1;) and resides in a file called Module/Name.pm. :)

It really isn't very daunting. Of course, these few rules alone won't make it a good module, or even a well behaved one, but as with most things in Perl, good behaviour is a matter of conventions and social rituals rather than something the language shoves down your throat. perlmod and perlmodlib should show you the ropes.

Makeshifts last the longest.