I have a 60 page google doc with info about the house, checkin, directions, parking, amenities, wifi, local attractions, shopping, sightseeing, Q & A, local history, etc. Guests get it in their welcome packet of messages upon confirmed booking. I remind them about it a time or 2 before arrival. And if they have questions once they are checked in, I answer their question, then also refer them back to the google doc. I get a lot of compliments and I think all 5 star ratings for "communication". I had to get a bitly short url, because some guests iphones could not open the very long google doc url. You have to set sharing options to "anybody with the link" on google docs.
Since Covid 2020, I do not physically see or welcome guests, so the google doc orientation is very reassuring to guests - and to me as host - knowing they can easily access lots of common questions and inquiries. I added home delivery supermarkets this year, too, for guests who are in quarantine or stay-cationing. Some common questions are also posted in the house: Wifi password, emergency plumber #, address (for deliveries), my #, etc.