So you're floating around in the International Space Station, and you notice your fingernails are kind of long. What do you do?
Well, Canadian astronaut Chris Hadfield has a trick. Step one: Get some nail clippers. Any old nail clippers will do.
Step two: Find an air vent. It needs to be an intake vent, with a fine mesh grille.
Then, cut your nails as you normally would, just a couple inches from vent. The air flow should collect the nail fragments:
When you're done, you can just leave them there. Hadfield says he just vacuums them up later, during his regular cleaning routine:
Now you know. Thanks, Chris!
