Has your door key gone walkabout once more? Or maybe you were able to find it yesterday but know in your heart that the Night of the Mislaid Key will come because it always does? Do you have a locksmith on speed dial because you’re pretty sure you’ll need one eventually--again?

You could make one more try at promising yourself that you’ll do what the memory experts advise: establish a homeplace for your key and remember to put it there faithfully every single time. Or you could just give up and bypass a door key completely. One less thing to remember. Install a lock that opens at a touch--but only your touch.

Your finger is the only key you’ll ever need for the the biometric fingerprint door lock. This one is not bad-looking, and the price ($199) is pretty reasonable. A bonus: you’ll never leave your door unlocked again because this puppy is a guard dog that locks automatically.

Uses 4 AA batteries; no PC connection needed. Fingerprint verification and door lock are combined in single unit for easy installation. It’s available for doors that open either from the left or the right. Fingerprints can be registered or erased directly with the lock on your door - and, if your circle of trust is wide, the biometric lock will accommodate prints from up to 120 of your closest friends.