Sorting emails by size in Gmail helps users find large attachments and manage storage efficiently. To do this, use the search bar and type "larger:" followed by a specific file size (e.g., larger:5M for emails bigger than 5MB). Gmail will display emails that exceed the specified size limit. Users can refine results using filters like has:attachment or older_than: to locate specific messages. Once identified, large emails can be deleted or archived to free up space. This method ensures a more organized inbox and better management of Gmail's storage capacity. Keep your mailbox clutter-free with this simple technique!