China Naming Network - Eight-character fortune telling - The best place to hide the key outside the unit door

The best place to hide the key outside the unit door

Under someone else's mat.

Many people are worried that they have forgotten their keys when they go out or lost them, so they always put a house key in the hidden place of the corridor just in case. If there is no special place to hide in the corridor, it is safer to put it under the mat opposite or next door, or put a key in the neighbor's house.