Sleep Your Mac by email
MurphyMac posted a cool little trick to configure your Mac to watch for custom email subject lines and then run Automator actions on their receipt. In his example, Murphy shows how to tell his Mac to go to sleep (using Apple's Automator sleeper action) when he sends mail with "sleeper" in the subject. The secret lies in a combination of AppleScripty goodness and Mail rules. He also posts a "how to reboot a PC by eMail" hint for those of you who are, in the words of 30 Rock, wearing bicurious shoes, at least operating system-wise.