Auto Off! Automatic 3D printer Shutdown. Complete power off.

Short version: Printer finishes, and lowers the hotbed but stays on.
Now printer completely shuts off then the hotbed is lowered. =)

Long version:
So I print a LOT.
I don't sacrifice my time by babysitting or staring at the printer. Plus it stinks.
I have a webcam to remote monitor the printer so I know if it had a problem such as not feeding filament or the part came off the hotbed, also so that I know if the print finished because the hotbed will be lowered outside of the webcam