Keep your jewelry, vital documents and other expensive items in a safe. Doing so can protect your valuables in the event of a robbery. Keep your safe in a hard-to-get-to place, such as a basement closet or your attic.
Use the space in walls to store your prized possessions. It's not necessary to cut out parts of your wall to do this. Take a closer look at your walls and note just how many access points there are already. Remove the wires from an electric socket you do not use so you can hide your valuable jewelry.