There's no better way - no safer or more secure way - to end a hard day's work than with E3 Nighttime.
Play a lullaby for your Windows box.
Just fire it up and start it (by merely double clicking on the graphic in the window - that's it) and in the morning when you wake it's all done, all clean. E3 Nighttime cleans the file slack and disk slack on all your drives automatically while you sleep.