Four Words: Secret. Folding. Bookshelf. Door. 'Nuff Said.Andrew Liszewski7/02/12 3:20pm81EditPromoteGo to permalinkIf you've managed to scrimp and save $3,000 for some much needed home improvement, forget about fixing that giant hole in the floor of the kids' room and instead install this secret folding bookshelf door in front of your study.