Lynnette Mann demonstrates how Microsoft Outlook 2010 Tags can be used to organize e-mail into categories. Tags are also useful for adding flags to messages and for dividing mail into Read and Unread categories. Applying categories to e-mails allows for quick sorting, and setting flags on e-mails is a good way to organize tasks. Sorting by category, flag, or "Read" status is a great way to manage the Inbox.