Conversation Clean up in Microsoft Outlook 2010

When you have a long conversation going through email, you can right click on your email, click Clean up Conversation and then Ok.  This will delete any repetitive emails in your conversation that have been sent through replies.  Also, if you would prefer that the duplicate emails do not go into the trash, you can click on the File tab, then Options and scroll to Conversation Clean Up.  Here you can select a specific folder for these duplicate messages to go into until you are ready to delete them.