Most people have to keep track of at least a few keys. The easiest way to do that is to just keep them all on one key ring. But the more keys you have, the bulkier the ring is to carry in your pocket. Here's an alternate design for holding and organizing your keys that's a little more efficient. The design is very similar in construction to a Swiss Army Knife, with the keys arranged on two parallel bars. Each key can be rotated into the handle for compact storage and rotated back out for use.
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