Are you starting a new software project? Don't reinvent the wheel. Before committing to some hand made procedure, you should really consider the combination of Bazaar and Launchpad. Handling the source code is not enough. A software project requires planning, defect handling, coordination between bugs and blueprints, a visual roadmap, and all the above in relation to your code branches. Don't forget about mailing lists, FAQ, documentation, which are integral part of a project. Whether you are participating to an existing project or starting a new one, Launchpad and Bazaar are a powerful combination for your productivity.