Want to secure your home? There are plenty of ways to go about it. You can make your doorbell send you a text if someone rings it while you're not home, or build a motion-triggered security camera. Even better, you can beat potential crooks at their own game by installing a door they can't even find.
YouTube user oggfaba created an awesome secret exterior door using materials you can easily find at your local hardware or home improvement store. It has a hidden keypad and remote deadbolt, and the "doorknob" is a water spigot attached to the house's exterior.
The door is covered in siding so that it looks like the rest of the wall, and a small cutout hinges upward to reveal the keypad—just in case she forgets the remote control. A ball catch holds the door shut while eliminating the need for a working doorknob.
Check out the video to see how it works.
If you're interested in building one for yourself, the complete materials list is included in the video's description on YouTube.
Want to start a little smaller? You can hack tons of things into hidden "secret stash" compartments, like books, a deck of cards, or even a whipped cream can. Or, if you want something a little more James Bond (or Batman, if you prefer), the classic hidden bookcase door should do the trick.