The toolbox gives you multiple options to clean-up and organize your recipes. You can get notified through different channels. You can access it through the 'Settings' menu or through the dashboard.
Category and Tag Editor
The 'Categories' and 'Tags' tab give you the option to bulk assign categories and tags to multiple recipes. You could also remove the unused ones or title case them all.
The 'Organize' tab can be used to show all of the items that do not have any category or tag assigned.