It's about time the future arrived. The MyKey 2300 ($300) uses Radio Frequency Identification (RFID) technology to replace your conventional door lock and metal keys. It can be installed easily on almost any doorway and unlocks with a wave of one of the six included RFID cards (or your wallet if you've got one stored in it). And since there's no keyholes to pick and because it runs off of isolated battery power, the MyKey is tons more secure than your current lock. The device also has a slide-out keypad and built-in auto-lock features.