PangoBright - Screen dimming software that allows you to control the brightness of your laptop screens as well as external monitors.
Preme for Windows - Speeds up your window switching.
ClickMonitorDCC - Control your monitor's brightness, contrast and volume using keyboard or mouse.
GridMove - GridMove - A window management tool that can quickly arrange your windows into desktop grids.
f.lux - f. lux is a piece of software for Windows, Mac, Linux, iOS, and Android that provides a blue light filter over your screen. Research suggests limiting our exposure to blue light in the hours before bedtime can help us fall asleep faster.
Dimmer - A very small and free utility for Windows to reduce brightness on LCD/TFT screens.