Heat from the windows

I know 'dark' is sometimes preferred but if light is not a problem, you might try this little trick. Use 'bubble wrap'. cut to the size of window (inside), clean window with Windex (or similar) then apply some Windex and place precut bubble wrap on the window and let dry. This lets light in and gives a privacy veiw. If you still want to see what is going on outside (like at the door) you can leave a small hole or slit in the wrap.

I first used this in an apartment that I lived in and works pretty good. You can find the bubble wrap in many places, including Wallyworld.