Stash your tiny valuables where roommates, family or thieves will never think to look. Here are step-by-step instructions from Sean Michael Ragan of Make on how to create a secret hiding place using a hollow-core interior door, a cigar tube and a few tools.
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They also don't like going into places that don't have 2 doors or a door and a window: Like a basement. A cop told me one of the best places to put valuables is in the basement in a place that's hard to access. Just leave a note in a safety deposit box for relatives incase you expire suddenly...