And they're in really bright sunlight for most of the time which will shine in through the windows and light up parts of the inside, so turning off the lights might not help a lot.
Reductionist and proud of it.
Being ignorant is not so much a shame, as being unwilling to learn. Benjamin Franklin
Chase after the truth like all hell and you'll free yourself, even though you never touch its coat tails. Clarence Darrow
A person who won't read has no advantage over one who can't read. Mark Twain