If you’re a pencil user this trick is for you! Ever get frustrated when you’ve had an eraser for a while, it ends up leaving black smudges instead of cleanly erasing your pencil marks?
Well here’s a simple solution from RealSimple for keeping your erasers around longer – just lightly rub the eraser over an emery board/nail file. This will shave off the eraser’s old, dirty top layer making it as good as new!

