The guest's dad drove in with a huge truck with their chairs and tables BEFORE check-in time. They did not forewarn of any huge truck drive-in. I mentioned to him where to park, use separate drive path for heavy truck, etc, and ask him not to block garage exit as well as he to communicate the same to the rest, which he agreed. After he left, his guest also check-into property early and block the garage exit and was ask to unblock and informed that she check-in early. She said she thought house was vacant. I thank her for doing so and later wave goodbye. Not sure, why that block-garage visitor would expect house to be vacant when the cleaning was underway.
The house rules were all known in advance of their booking. Key rules include reasonable items like "no outdoor shoes inside house, just use provided in-house sandals". House has some labels so guests don't need to phone me where things are, etc. So far no past guests object to putting some of the house rules onto a small white board as a reminder.
Their head-count exceeded the advertised 16 people. They were asked to pay overage fee before booking acceptance, which guest promptly agreed, was eager, and sounded gladly too. I can only wish them they had a smooth wedding event and a happy newly married life.