J.W.
I don't care if they are easily accessible to my kids so I keep them up in the foyer closet. They know how to ask, ya know? Also on the shelf I have a small bin that I throw stray pieces I find so I don't have to pull the box out and put it in every time I find a piece. I can assure you the box that the missing piece belongs to is always on bottom. :(
Oh if they play them a lot I let them keep one or two on the shelf under the cocktail table.