Label your keys with nail polish to identify them quickly
This one’s for those of you who consider themselves forgetful people, too. The person that loses their bobby pins is probably the same one that gets confused about which key opens which door. In fact, it’s more common to have more than one on your keychain, so this confusion is a worldwide phenomenon. Have you ever considered labeling them with paint?
As straightforward as it sounds, it’s weird how nobody does this. To identify each key quicker, paint them with different colored nail polishes. Thanks to this, they will stand out in your purse, and you’ll be able to associate each place with each color. If you’re extremely forgetful, you can keep a list detailing which shade should open which building.