As Darkfinn mentioned, reading the article would probably provide the most help, since we have no clue about your circumstances, such as how many people you live with, what your house is like, your parents/siblings attitudes towards room privacy, etc. The only thing we can really do is tell you where we hide them, and then suggest general locations.
I'd recommend you find an old box, for something like a game system, stick them in there, and put that box somewhere like in your closet or under your bed. That way, if anyone asks, you can tell them that you're keeping the manual or something like that. If your room isn't heavily traversed, then you might find it helpful to put them in bag (not plastic), and put that somewhere, again maybe your closet under some clothes or something.
Another option, although this sounds kind of wierd, is to not put them in your room. Although I can't really think of anywhere at the moment, you may know of some places that would be good, like in the attic or somewhere no one really goes. That's about all I know...