Make Use of the DND Sign
Here’s a “hack” that most people know but don’t care enough about. If your hotel provides a Do Not Disturb sign that hangs on the doorknob, use it every time you leave your hotel room. Seriously, hang it on the doorknob before leaving the hotel. Don’t not forget to do this.
Even though we’d love to believe that we can trust hotel staff with our personal belongings, there’s no guarantee that housekeeping won’t barge into your room and ruffle through your things. If you do find something missing and you have a DND sign up, you’ll have a good reason to complain to the hotel manager.