You don't need to use any fancy "green" cleaner or otherwise. The key is to use a microfibre cloth, as used for eye-glasses. Gently (do not press hard or you could damage the screen with pressure) ...

Hopefully they will be rich aliens, we can sell them some sub-prime loans and ride the gravy train. AC/DC's "Dirty Deeds Done Dirt Cheap" would greet them.

When having your picture taken, ask the photog to give you a three count, then close your eyes and relax, then open them up and smile on the third count.