DIY for address plaque with glow-in-the-dark (at least for a little while) numbers and a secret key compartment - by Matt2 Silver [Instructables]
Hide a Key In Plain Sight - 13 Secret Hiding Places: http://www.familyhandyman.com/home-security/20-secret-hiding-places#12
great idea to hide a house key
making life easier: outdoors
Safer than a hide-a-key. ($15.96)
This is a guide about making a pill bottle hide-a-key. It is easy to have a weather proof hidden key outside your home to make sure you can always get inside.
Oooh ... never thought of this hide your key idea!
Hide a hook on top of your door's moldings to hang holiday decor without getting out the tool kit. See more at Fynes Designs »
Hide a key More
Hide a Key Use an empty pill bottle for a genius way to hide a spare key. Super glue a rock or garden decoration to the top of the bottle. Insert your key, close the bottle, and bury the bottle part in your garden or anywhere in your yard.
Ingenious Tips For Your House
Toilet paper roll hidden inside a jar to hide a small gift.