Originally Posted by
dtsm
As long as wifi/3g turned off, closing the kindle case and putting away is the best way. It actually turns off automatically if not used for 5-10 minutes.
No it doesn't - it changes to a screensaver-type image, but anyone looking at it would certainly think it was off.
The e-ink screens do not use power unless changing pages, provided the wireless radio is off. That's why it switches to this mode and can leave an image on the screen.