Have you ever locked yourself out of the house? Clark certainly has. Now new biometric deadbolts that read fingerprints can ensure it never has to happen again. Many of the big box hardware stores have these biometric locks for sale near the keys and traditional deadbolts.

Clark sees this as a safety no-brainer for women who routinely arrive home late at night by themselves. A fingerprint lock would prevent them from having to fumble around for keys in the dark.

Looking for a less high-tech option? Try a deadbolt that also has a combination lock built in. You can even give a trusted person their own unique code to gain entry.

As a bit of counterpoint to this whole discussion, Clark recently heard about a high-end Mercedes model in the Asian market that has a fingerprint ignition feature. Carjackers reportedly cut off the owner's finger to make off with the vehicle. Of course, that's something out of the realm of complete paranoia for most people in their everyday lives!