@Daniel127 Hey Daniel,
I've had that problem too, though not frequently. But I am always very upset when my guests don't lock the door by key although I my house rules clearly ask them to and I always repeat this information when welcoming them. Now, the sum of the measures below work pretty well. What you can do is:
- only accept guests with reviews and good reviews
- turn off instant book so you know who is coming to your place
- put it into your house rules and include a code into your house rules that must be provided when requesting a booking. This way you know if guests have read your house rules.
- welcome your guests personally if possible and tell them again
- tell them that you will write a review after they checked out (so they know that any misdemeanor can be a problem for them when trying to book in the future
- Tell them to always send you a message once they have checked out (if you cannot do the check out in person), then if they send you that message ask them again if they have locked the door
Michael