Dimmer - A very small and free utility for Windows to reduce brightness on LCD/TFT screens.
EasyRes - EasyRes is a fast screen resolution switcher for Mac OS X with live animated previews.
GridMove - GridMove - A window management tool that can quickly arrange your windows into desktop grids.
SwitchResX - SwitchResX is a tool designed to manage resolutions of all your monitors and HDTVs.
Preme for Windows - Speeds up your window switching.
QuickRes - The best way to change resolutions on your Mac