One of the lesser known obstacles of space travel is cutting your nails without making a huge mess. Canadian Space Agency astronaut Chris Hadfield explains:
"[Fingernail bits] won't fall to the ground [in space]. You can't sweep them up. They're gonna float everywhere, they'll get in your eyes, people will breathe them. Not good."
Hadfield, though, has a nail cutting technique that simulates gravity:
Hadfield braces himself over an air duct that essentially acts as a gravity simulator. You can watch the entire thing here:
We highly recommend browsing through the Canadian Space Agency's YouTube page for random gems like mixed nuts floating in space:
And a wristwatch floating in space:
Basically, if it floats, the CSA will make a YouTube video out of it.