In a previous life I wrote many, many lines of Informix-4gl. Over the years I found myself migrating towards the
descriptive variable/descriptive sub style of commenting.
As I've started learning Perl I've found myself adding lots of one liners that explain how things work. Most experienced Perl folks would probably find these redundant, but I'm still in the baby code stage and I need the reminders. As I develop my perl instincts, I hope to eliminate the one liners and go back to descriptive variable/descriptive sub.
Dave