A use for my Apple remote

Sometimes the kids don't want to turn off the MacBook when their time is up. Now I can zap it from across the room ...

Stupid Apple Remote Tricks | Macinstruct

...Simply hold down the Play/Pause button and your Mac will go to sleep. To wake up your Mac, press any button on the remote...

Our Mac screens lock when they sleep, so this is a sleep and lock function for us.

(found via TUAW)