Remove a broken key with super glue
Sometimes, your key snaps while you are trying to open a door. It also tends to happen at the most inconvenient times, like when you are late for work. The key itself may have weakened with time, making it more likely to snap when turned, particularly if it is done with too much effort. But the next hack will definitely save you from losing your mind.
If you have super glue or hot glue, you can glue both parts of the key together at the same time. After it is glued together, you can gently take it out of the lock. This strategy should work most of the time. And it can even save you some time and money since locksmiths can be quite expensive. You should definitely keep this hack in mind.