Glass2k - Small little program that allows Windows 2000/XP users to make any window transparent.
Dimmer - A very small and free utility for Windows to reduce brightness on LCD/TFT screens.
Peek Through - Title: Peek Through Description: Peek Through is an application for Windows XP, Vista and 7 which makes the foreground window transparent with the press of Hot Keys. You may adjust the amount of tr…
GridMove - GridMove - A window management tool that can quickly arrange your windows into desktop grids.
Optimal Layout - Optimal Layout is a powerful Mac OS X application for managing your applications windows.
Preme for Windows - Speeds up your window switching.