Stewie123 (USA)
Fingerprint Doorknob
Ever been caught looking for your house key, or maybe you just forgot it inside when you left the house. I came up with this idea, it would be a finger print scanner right on doorknob were the key hole is all you have to do is register you finger print on a microcomputer, and whenever you want to lock or unlock the door, you just put you finger on the scanner.

Reward: one free product

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