Three years ago, I was introduced to a Taiwanese Fengshui Master in Kaoshiung. When he heard that I often stay alone in a hotel room, he told me to do the following.
Before entering a hotel room, knock first to inform whatever was in the room that you are going in.
Look for a Bible or Religious Book (经书), turn to any page and leave it open, on your bedside table. Most hotel provides a bible. Keep a pair of slippers at the end of my bed. According to him, the bed forms a circle around me when I sleep. As I'm considered a beauty.... ahem ahem....... male spirits tend to bother me more. If an evil spirit descends on me, I would be rendered paralyse. It could then do whatever it wants.
So by leaving a pair of slippers at the end of the bed, it opens up an exit.
Cover all mirrors. Mirrors become very scary at night. Many horror movies that I watched have scary ghosts appearing in mirrors. If I have to get up in the middle of the night to go to the bathroom, I try hard not to look in the mirror.
Keep all the lights on. He didn't say this. hehe.....
I don't know if I didn't have any spooky adventures because I did the above rituals, but I do them to keep myself safe. Some friends have encountered spirits in hotel rooms. I know a couple of macho guys who must have a companion whenever they check into a hotel.
hmm....... the above applies mostly to Asian hotels. Do I have to bring garlic when I checked into a hotel in Europe and the US?
According to the Master, some hotels have spirits lingering in their rooms because there is a lack of human chi (缺少人气). It can happen in our house too if too few people live in them.