I am a careful man. For every development project, I have a corresponding Subversion repository that stores all assets relating to the project. For browsing (and blaming diffs), I use WebSVN to provide a friendly interface. I currently use DreamHost to host my repositories.
However, I got tired of updating the WebSVN configuration every time I added a repository. Therefore, I developed a short, dynamic method of just listing them all without need for reconfiguration. Add the following snippet to your config.php:
$repository_root = '/CHANGE/TO/YOUR/PATH/svn/';
foreach(glob($repository_root . '*', GLOB_ONLYDIR) as $repository_dir) {
$repository = basename($repository_dir);
$config->addRepository($repository, 'file://' . $repository_root . $repository);
$config->useAuthenticationFile($repository_root . $repository . '.access', $repository, $repository);
}