Essentially, it's a polyurethane cage full of goodies that you store in the fridge and secure with a combination lock (included). Of course, there's nothing preventing thieves from stealing the entire cage and working on it later with a hacksaw, but that's a lot of trouble to go through for a can of Beefaroni and a bottle of Mtn Dew. [Perpetual Kid via RGS via OhGizmo]

Steve Hoefer's secret knock detector is little more than a piezo speaker, a tiny gear reduction motor, an Arduino and some PVC pipe—basically a bunch of stuff he had lying around the lab. It works by keeping track of the time between a pattern of successive knocks. It's probably not the most secure way to lock a door, but Hoefer notes that there is a lot of room for improvement on this design. Besides making it small enough to actually fit in a doorknob, you could program it to accept a variety of knock patterns, including different knocks at different times of the day. Hit the link for instructions on how to build one yourself. [Grathio via Make]

The locks allow remote status checks and changes, so anywhere you've got a secure internet connection, you can lock and unlock the door at will. It's also got a ton of extra features, like turning on customized lighting when you enter the door or notifying you via email of anyone going in and out of your house. This is all done by Kwikset's marginally paranoid Connect4 system, and it's likely to cost a pretty penny. But I'd definitely pay a premium to be able to know for sure whether I locked the door. [Kwikset via Engadget]

It's a way for nefarious types to defeat the lock by quickly shoving in a trick key, taking just seconds to do—apparently many normal locks are easy to defeat. Secondly, by using a special adaptor, you can actually teach the Smartkey lock to use a new key. Fancy using any old key, or changing keys once a week? Easypeasy. It won't make your home Fort Knox, by any means, but it adds a touch more security and may keep unwanted mothers-in-law at bay. [Apartmenttherapy]

[via TechEBlog]

Then neither have I.

But if I were some sort of psychotic with a crippling gambling addict I'd probably consider getting the Winner's Bank 200 locking wallet...

As long as you leave the key at home, the wallet's metal, cigarette case sized shell will store your cash or chips so you can't lose em to the house. It sounds crazy. But it just might work. Or I might just get so desperate for money that I drive over and over the case with my car until it pops open. I mean, SOMEONE who is addicted to gambling, yeah, they might do that. Not me.

The instructions are mindblowing:

Instructions on how to use your Winners Bank200:

1.
Leave the keys at home!
2.
Also leave at home all credit cards, ATM cards, and checkbooks.
3.
Bring only a set amount of money, along with a positive, winning attitude.
4.
Have a "Winner's Game Plan." (Read "Winners Bank200 " Card)
5.
When you win, put it in. Put at least 50% of all your winnings.
6.
Winners Bank200 accommodates multiple monetary units including casino chips.
7.
When inserting paper money, fold the bill into eights.
8.
Pull out the "Winners Bank200 " Card, and position it to push the money in.
9.
"Showfor the Money!" into your Winners Bank200 by pushing it in.
10.
Do NOT attempt to pick or break your Winners Bank200.
11.
When you get home, insert the key into the back panel of the keyhole.
12.
Turn the key hard clockwise (to the right).
13.
With the key attached, remove the back panel and get your money out.
14.
Replace the back panel and secure it by turning the key counter-clockwise (left).
15.
Now you are a REAL Winner!

The Winner's Bank 200 [The Winner's Bank]

Thanks Cory!

Go online to xbox.com and register a new gamertag with an email address not associated with any previous account. Then make sure you set your country to either Japan or America—perhaps making one tag for each. Then when that's done, go on your Xbox 360 and choose "recover gamertag" to grab the info from this tag onto your 360. Now you can see all the Japanese games you've been missing out on. – Jason Chen

Bypass the Xbox 360 country lock [Sagn]

Sequiam BioLock [via Electronista]

We'd love to outfit one of these in our apartment doors so we won't have to do the one-arm shuffle when holding a metric assload of groceries. – Jason Chen

Product Page [Brick House Security via Gadgetell]

And if you forget your passcode, well, you're screwed. So implant that RFID chip in your skin like you've been planning to do. If the battery does run out, you can hold up a 9v battery to it to juice it up enough for you to get inside and replace the battery. Pretty nifty device, but at $300, it may be a little steep. – Jason Chen

Product Page [MyKey2300 via Uncrate]

When the USB receiver is plugged into your machine, as long as the transmitter is in range, your PC acts normally. As soon as you walk out of range—with the transmitter in your pocket—the receiver locks your PC to prevent unauthorized access to your machine. Useful at the office, where a trip to the bathroom may invite your co-workers to pull the old take-a-screenshot-and-set-it-as-your-desktop trick.

Available now for £19.99 ($34). – Jason Chen

Product Page [Gadgets.co.uk via Coolest Gadgets]

Product Page [Via Red Ferret]