Well, when I say "spell" I include potions and magic items in that. Maybe you could have a sort of mould you put on your face and it takes off the hair in specific places. :)

In any case, I doubt that readers are going to be thrown out of the story on account of a lack of stubble.

Maybe I over analyse these things. *g* I can't say I really notice it in other people's fic either. I just obsess over the details in mine.