Oh yea, I forgot that it doesn't have a silent switch
You can hold down the volume down switch to mute it quickly, I figure it's just as easy to hold down the power button and turn it off. Old habits die hard, and even though it's not necessary to shut down modern Apple equipment daily, my iPhone and iPad are both off at night. My iMac hasn't been off, or restarted, since the last software update required it.