Side/passenger window demisters?

[Falconxr68]

Is there a way to stop the drivers side window, passenger side and the two rear windows from fogging up in raining weather? Its not very convenient to wind down the window when driving and neither is constantly wiping it with your hand.

The rears are important too because they are essentially your blind spot.

So my question is, how do you deal with fogging up windows other than the front and rear (which most cars have demisters)?