Quiet hg branch
This extension suppresses the "branches are permanent and global, did you want a bookmark?" hint that Mercurial shows when you run hg branch. With the recommended branch workflow, you won't use many branches, but if you're not following that workflow, this extension might be for you.
You can install the extension by cloning this repository and adding:
[extensions] quiet = path/to/clone/quiet-hg-branch.py
to your .hgrc file.