Your hands are dirty. In fact, the CDC has some very interesting statistics about just what ends up on your hands and why that matters (read: lots and lots of poop).
Space: the final frontier.
I love doing outdoorsy things with my dog and often it's dark before we return. I decided to make an LED dog vest since it allows her to wander further away while still being visible.
Now I lay me down to sleep, I pray the Lord the Earth to keep.
The next time you wake up from an all-weekend bender and find yourself in space, you'll want to be be prepared to wash the vomit and shame from your hair.