It's kind of an unspoken air travel rule, wouldn't you agree? Whoever has the window seat typically decides if and when the shade goes up or down. Sure, the middle and aisle seat passengers can have a say, but when was the last time you asked a window seater who was contently peering out the window to shut it, thus killing their joy? Likely never. Sitting by the window gives you the power to soak in that sunset or, if the sun's too blinding to handle, to close the cover and take a snooze.