My Nexus One is dying of old age (it’s 3-years old) and I’m unable to use it as an alarm clock. I needed to make that I woke up on time one morning and figured I’d just use my computer instead. There’s no in-built alarm clock and I didn’t have an internet connection to download a specific App. Thankfully, Automator allows you to create a solution in 30-seconds.
I’m sure you could write a more elegant solution using AppleScript, or PHP/Python (both are built into the OS), but without being able to reference material online I would’ve struggled to have had it working.
Automator is ridiculously intuitive and is worth considering for all kinds of similar problems.