Super Safe Lock Lets You Swap Out Keys

High-tech lock maker Kwikset has announced the SmartKey. Its banner feature is anti-bumping technology, which supposedly makes the lock un-pickable (bumping is about the quickest and easiest way to break a lock, involving a hammer, a dummy key and, well, that's it).

But we don't care for the security so much as the convenience. The SmartKey lock can be re-keyed by the owner. You put in your old key, hit a "learning" button inside the lock and then swap in any key. That key is now paired with the lock. Very neat, and very easy, allowing a single key to be used in a multitude of locks. The downside? Let's just say you might want to keep a spare.