Sometimes, I wander around at sourceforge.net just to see what's happening in my areas of interest (finance, languages, ...). On one such trip, I chanced upon a "Help wanted" for documenting a financial software. Right up my sleeve, I thought, and wrote to the developer.
That was about a month and a half ago.
Today, the documentation is up and running at the software website: Mjrz.net Personal Finance Manager*. Despite some teeny-weeny bugs in the doc, I am going around with a huge grin on my face - it gave me a thrill to see my name in the credits :)
* The project has since ceased to exist. The link will no longer work.