Free Alarm Clock for your Mac using iCal

There’s a lot of good alarm clock software out there, but there’s also a way to turn your Imac or Macbook into an alarm clock totally free using iCal and iTunes.
First you open iCal and set up a new event for the time you want the alarm to go off, then set up an action  by editing your event and setting the alarm to “Open File” then attach a song from your iTunes.

Make sure you’re volume is up and you’re all set with your own free alarm clock for OS X