I’ve come across two issues lately

1-      How do I sort the folders by size, since this feature is not available in windows, so there you go and it is free..wow
http://www.softpedia.com/progDownload/Folder-Size-Explorer-Extension-Download-20671.html

2-      How-to find the duplicate files on your desktop or on the server

Bing  for Windows Search 4.0 , that’s it