How to ward off evil spirits while staying in a hotel. . . Can I use coins?

The principle of copper coins to ward off evil spirits is that copper coins have passed through the hands of thousands of people and gathered yang energy. Coins can also be used, but the effect is not as good as copper coins. When staying in a hotel, be careful not to stay in the last room or a room with the number "2" or "5" in it. If it is full or there is no way to adjust it, you can put a coin on each corner of the door, a coin on each of the four corners of the bed, and a few more coins on the bedside, if they are odd numbers. Hope this helps!