Cutting Key.
having one of those days where you realize you only have one key to your car and stop by the hardware store to get a second one made.

perhaps it's thanki g yourself ahead of time so might say it's common sense but I don't know what is common and the sciences cant explain sense to me. when I worked in the hardware store, I must cut 250 to 300 keys. I could cut a broken key, a bent key, even a twisted key, and half a key if you brought in the lock. The old machines if you follow the guidelines which is helpful, won't help, you need to learn finesse, but there are machines for that today, which are ready, though the operators may not.