Share your favorite Windows applications

Security, maintenance, music, manipulation, text, legal torrent clients, tools, ect.
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Mine;

-Foobar2000 for music libraries
-VLC for video playback
-Firefox with plugins; adblock plus, googlesharing, https-everywhere, better privacy and share me not
-Dropbox for file hosting and backups
-Notepad++ for programming/ text editing
-Eset Nod32 for firewall and virus protection
-Tuneup utilities 2012 for maintenance, defragging, optimizing, and registry cleaner
-Putty for ssh connections
-Npackd for repo of windows applications