The following add-ins have been created for SharePoint 2010/2013.
RMToolkit – Created to aid in the area of in place records retention.
Where do I file it? – An autocomplete navigation system for your sites/libraries and folders.
MMD Importer - Synchronize your termset terms with an external SQL table (ie a vendor list etc.)
These addins assist in the areas of records management, metadata classification and sharepoint navigation.