I recently created a custom VSI file which is a kind of ZIP file used to install Visual Studio content. A Visual Studio Content Installer can be used to distribute macros, addins, code snippets, toolbox controls, or templates. I created my VSI file to install some custom macros and one code snippet. A special XML file specifies the content of the installer.
I should probably create some XSL files to display several of the Visual Studio XML file formats in the browser as a means of documenting them in alternative display formats. That would be an easy way to do something innovative and gain me some notice in the developer community.