Shutdown your PC even on a schedule or from a mobile phone, with Switch Off
Switch Off is a free and easy-to-use system utility that could automatically shutdown, suspend or hibernate your system. It will also disconnect dial-up and VPN connections.
Automation options allow you to schedule all operations daily, weekly, past specified time or when PC becomes idle.
Simple Web interface allows you to initiate operations remotely from any computer or mobile (cell) phone with web browser installed.
If you are after a simple shutdown tool, check Windows Rule.