I put it in between my teeth and bite down on the very end part, the oppsite end from the end you touch the screen with. I got mad once and bit it......hard... I made a dent...lol
it never nears my mouth...and i hope it doesn't near my bro's either...anyways, it's usually in my fingers when i'm not using it in wi-fi, or in the holder in the back of the ds when i'm not using it in my own town.
Sometimes my stylus is in my mouth I think but mainly its in the compartment or on the bed when I'm not using it. If the stylus is on the bed that means I'm playing a game that uses the touch screen but I'm away doing something else