AMP WinOFF - An utility for scheduling the Windows shut down with several modes (shut down, restart, hibernate, lock computer...)
upower - UPower is an abstraction for enumerating power devices, listening to device events and querying...
Shutter - Shutter is a feature-rich screenshot program.
Laptop Mode Tools - Laptop Mode Tools is a package of userspace scripts for Linux kernel "laptop mode".
Shutdown8 - Shutdown8 is a simple program that allows users to shut down their computers with a timer.
PowerTOP - PowerTOP is a Linux tool to diagnose issues with power consumption and power management.