On Mon, 20 Aug 2012 13:51:43 -0700, Oren wrote:

On Mon, 20 Aug 2012 16:03:44 -0400, Metspitzer
wrote:

Using a wall outlet box with a telephone jack cover is a pretty good
one.

.. and four pages of more places

http://www.misdefenseproducts.com/Hiding-Places-for-Valuables-p-1-c-272.html

(JB Brake Cleaner Secret Safes)

Take a storage box about the size of a VCR tape box, and screw the lid
to the bottom of a table/desk or the inside of a closet so the hinge
side is down.