I'm recommending this for Jon (see below). It can really clear the mind and help you feel centered. It's a website that challenges you to stare at it for two minutes without doing anything else. If you touch your mouse or keyboard you will get a "fail" message. Ready to try it? Click here.
I recommend contemplating the supremacy of the Steelers. You can sort of imagine that the sun image looks like a nuclear mushroom cloud. Much like the impact of the Pittsburgh defense.