I am using ra-plugins as a toy to do things I never bothered in other projects.
I am doing unit-testing. And now... some literate programming!
Ok, not much, and not very well, but at least I am playing with Lp4all which is a nice, simple tool to generate nice HTML from slightly wiki-marked sources.
You can see some little things in my code here. My veredict so far? A nice way to keep the code documented in a fashion that ocasinal browsers can follow.
The main thing missing is automatic cross-referencing.
In general, I am finding that this (and unit testing) helps me express explicitly to myself what the heck I am trying to do, and see if the code actually does it. Which is a really good thing.