PowerPro
Briefly talked about at http://www.rgdot.com/bl/2010/03/16/powerpro-is-the-ultimate-freeware/
Does it all and some more. Create a bar to do everything from launching programs to saving clipboard items and to scheduling systems task and lots more.
Photoscape
www.photoscape.org/ps/main/index.php
Reviewed at http://www.rgdot.com/bl/2009/04/20/photoscape-for-all-your-image-editing-needs/
Photo and image editor and viewer with many features on a clean interface.
VirtuaWin or Dexpot
virtuawin.sourceforge.net or www.dexpot.de/index.php?lang=en
Dexpot reviewed at http://www.rgdot.com/bl/2008/12/17/dexpot-virtual-desktops/
Virtual desktop manager to create different desktops with different applications open on each. Organize your oft used applications on different desktops.
Dropbox
Backup and store your files on the cloud, easily access them and their older versions on your computer and online anywhere.
Clipboard Help+Spell
www.donationcoder.com/Software/Mouser/clipboardhelpandspell/index.html
Reviewed at http://www.rgdot.com/bl/2009/03/08/clipboard-helpspell-from-donationcodercom/
Extend the capabilities of the Windows clipboard and keep unlimited number of clipboard and notes forever.
Notepad++
The Notepad alternative and free source code editor of choice. Open source and a must for all who write code.
CintaNotes
Reviewed at http://www.rgdot.com/bl/2009/03/22/easily-gather-and-collect-notes-with-cintanotes
Grab text snippets, save and tag them for future reference.
Writemonkey
Reviewed at http://www.rgdot.com/bl/2009/05/26/writemonkey-is-soul-food-for-the-modern-writer/
Write without distraction and work with your writing in an efficient manner.
Locate32
Reviewed at http://www.rgdot.com/bl/2009/04/07/locate32-quicker-and-easier-way-of-finding-files
Quick and easy way to index a Windows drive to search for files within it.
Stellarium
Reviewed at http://www.rgdot.com/bl/2009/11/14/stellarium-is-astronomy-central/
More than just a hobby software, a fascinating and feature rich look at the sky right from your desktop.