Here are some hotel room safety tips you should know about. Use your belt to go through the chain link for your hotel. This makes it harder to pick it or even remove the lock from the chain link. Use a glass to wake you up if someone tries to open the door. And my favorite of all - a self-made barrier. In this case, I'm using a shower curtain rod to barricade the door. I'm using a triangular method to put pressure on the door and you won't be able to open it.