I know this is a very small thing but it will change a little bit our day to day mailbox management 
With the November 2013 updates for Office 2013, a new option is now available from ANY folders within a mailbox hosted on Exchange. Yes, this is only available for Exchange mailbox as the feature in question is the recover deleted items.
Before the November 2013 update, to recover a deleted items, you had to go to the Folder tab and click on Recover Deleted Items.
With the update, this option is NOW available from any folders on your mailbox
