The first guest, not the fifth
An introduction is worth paying for once. Twenty per cent of a €700 week is €140, which is fair enough on a couple who had never heard of you and steep on the couple who stayed last April and want the same week again.
So keep the listing. What you do not have today is somewhere to send the ones who already know the name: a page of your own, your photographs on it, and dates they can hold without a middleman.



