There are number of application software that allows you to configure computer system to shutdown, restart or logOff after specific period of time. TweetMyPc does similar but with ability to shutdown, restart or logOff computer remotely by sending a tweet on Twitter account. Here is simple
Shutdown & Reboot computer quickly from Taskbar
Are you bored of reboot and shutdown of computer from start menu that involves multiple clicks? Well, make things little easy and different by performing shutdown, log-off and reboot from taskbar. iPower is a tiny utility that allows you to quickly perform shutdown, log-off and reboot