3. Painted Keys

You know that annoying charade where you get home at the end of a tiring work day, or back from the grocery store with your arms full of bags, and you just can’t figure out which key opens the front door?

Well, you can eliminate this problem by making your keys easily identifiable. Just use a bit of nail polish or leftover paint to color the top of your keys. You could also put a dab of the same color on each specific door for further clarification!