Bug, request, source tracking and Wiki

I have been using Bugzilla for quite some time.
Then came a client that hated complex procedures. Bugzilla was not the interface for him. Bugzilla is more for tech-teams usage, not for a client in a marketing dep who wants an easy way to keep track of their requests.

And then came Trac. It's a python and sqlite. It's a bug/request-tracking system (aka ticket system) bundled with a very nice Subversion integration, Wiki (with attachments).

It has a very clean and friendly interface.

My client loved it.