The Custom new file name plugin enhances the file creation experience in Obsidian by allowing users to define custom naming conventions for new files. With this plugin, users can automate the naming process by setting up specific patterns based on factors like date, tags, or file types. This streamlines workflows, especially for those who frequently create similar files, such as daily notes or project logs. It helps maintain consistency and organization across your vault, saving time and reducing the manual effort required to name new notes, while improving overall file management within Obsidian.