Use different colours of nail polish on your keys so you can easily tell them apart. Just remember which colour you used for each door…
Take any nail polish, apply two coats, and you’re done. That’s how easy this DIY project is. Remove with nail polish remover, and you can start all over with new colors. It’s definitely cheaper than buying key covers for all of the members of your household and much easier to personalize.
Going to steal some nail polish from my wife.