You should not forget that this is a business trip, and your agent has been preparing your trip meticulously. You will be visiting many properties, getting around the locations, so make sure to have with you some comfortable shoes. While your agent will provide you with most of the materials you'll need, it always come handy to have a personal notebook where to write notes.
Your agent will definitely brief you on the weather, however a quick look to weather forecast will help you to choose the proper clothes to bring with you. If you have some personal preferences, requirements or health concerns you think your agent should know, make sure to inform him/her before arrival to allow enough time for the arrangements.
You should remember that a downpayment will be required if and when you find your ideal property to purchase, so make sure to either have some cash with you, or on your debit/credit card.
The only paper which will be asked from you on time of purchase will be your passport, however should you also be required or interested to open a bank account, having with you a copy (or the original) of any utility bill and/or phone bill with your address will definitely help.
The true benefit is...peace of mind. To come and have a personal look to your property of choice will provide you with immense peace of mind, knowing exactly what the property looks like, where it is and many more details perceived and personally acknowledge will give you this necessary peace of mind before making the last step..
*Please check for terms and conditions about Viewing Trips.