My mom never goes downstairs much, so I keep my weed in a tupperware container (No smell) and put that with all my weed stuff in a bag, and hide it behind some junk on a shelf... nobody looks, there's about 200 possible hiding places down there <.< It's the best to not hide it in your room, since that's where they always expect it.

Also nice and cool down there all the time, so the weed stays fresh longer.