Is there any spefic sequence to power off an arduino

Hi guys, Firstly forgive me for my ignorance but I just got an Arduino and dont want to mess it up. Is there any specific way of actually powering an Arduino down or can I just pull the USB cable right out at any time and cut the power?

You can just pull the USB cable.

Okay. Thanks!

You could have an issue if a long (lots of bytes) EEPROM write was underway, but that's a discussion for another day.