Monitor Bright - Monitor Bright reduces with a simple trick the monitor brightness.

Workrave - Workrave is a program that assists in the recovery and prevention of Repetitive Strain Injury (RSI).

PangoBright - Screen dimming software that allows you to control the brightness of your laptop screens as well as external monitors.

StretchMinder - Work break timer with guided movement & breathing exercises

LG OnScreen Control - Allows to set the brightness (and other settings) of the monitor through DDC/CI. Meaning: keyboard and/mouse instead of having to fiddle with the OSD menu manually. http://www.lg.com/us/support/monitors

Iris - The fastest web framework for Go in (THIS) earth