If you have valuable stuff in your home, there’s a number of ways you can go about trying to keep it from the hands of would-be burglars. There are obvious safes, but these are typically a magnet for determined thieves, and then there’s the plain-sight approach, which might make some of you nervous. But what about an Air Vent Safe? This particular one comes with a set of RFID magnetic cards that, once hovered over a specific spot on the vent, will activate the locking mechanism and pop it open. There is no other way to tell this apart from a regular vent otherwise. It fits between two 16 inch center studs and instructions are included. It’s $219.