Have you ever arrived at your door late at night only to spend minutes trying to find the right key to get in? Not only is this an inconvenience, it may also be dangerous for some people who may need to get inside quickly after arriving at home in the dark.
Instead of trying to use your cellphone as a flashlight or fumbling with each key until you find the right one, make your house key stand out easily to the touch by drilling a second hole into the key. Secure your key to a drilling board with a vice grip and drill a small hole you can easily recognize by touch.
Make sure you avoid drilling near the teeth of the key so you don’t accidentally damage your key. A second hole near the keyring hole will allow you to quickly identify your house key by touch so you never have to worry about scrambling to find the right key when you need to get inside quickly.