Not at all. I used the back of my living room door, so really, if I want to hide it all I have to do is leave it open, and since I live alone and don't have a lot of visitors I don't have to worry about it. :)

It fits four sandwich baggies across and something like eight or nine rows from top to bottom. Right now I've got twenty-six on there and I think I could probably fit about ten more. I just labeled each one with the story name in Sharpie, then every time I put a card in there I make a note -- usually, I can whip up a plot around thirty to thirty-five cards.