Do you leave PC on all day/night or switch on/off as required?

[AlphaJohn]

With the cost of electricity these days, I turn off every single thing I can.

So I only turn my PC on when needed, and when I'm done with it, I switch it off.

Sometimes I forget about it though.

if you doing it to save energy, you should unplug instead of turning em off. Transformers consume power even when nothing is drawing power. or flick the switch at the back.

A PC that is turned off can still draw up to 1W/h, oh and while we at it your phone charger still consume power even if no phone is plugged in.