Over at WikiHow, one crafty reader published elaborate plans for how they built a secret door behind a bookcase. It involves a lot of construction, but we can all dream, can’t we?
Check it out: “It not only indulges your inner mystery-lover, but it also makes extra use of an otherwise unusable and perhaps not aesthetically pleasing space. What follows is the general process for building a hidden door bookshelf that, if you have basic welding and carpentry skills, you can customize to your specifications.” (Image juhansonin)