PowerMenu - Always on top, transparency, minimize to tray
Acer GridVista - Pin window to top - arrange windows to grid
Ninotech Path Copy - Copy path from context menu
FlashFolder - Access recently used folders from common dialogs
Copy as Path for XP context menu with .reg or .vbs - not needed in Windows 7 - (Shift+Left Click)
Launchy - Quick Keyboard Launcher
Default Programs Editor - Gain control of your context menu - edit NewShell descriptions, open with, etc.