When creating perl scripts/programs, I always end up creating the POD while writing it. If I do it while the program is still developing, I get the correct info.

Items I include are:

Description

Usage

- What you need to input to proggie

Requirements

- what modules are required

Known bugs

- Issues I need to fix.

Edit: Realised I did not answer the above ?. These are just my personal steps.

If you are having to figure them out... choose a function, learn it then document. Repeat for all section of the script/program.