15. How can I feel certain that I am dealing with a reputable company?

This is a very legitimate concern for many travelers. We recommend you begin with the tourist board of the country in question. The British Tourist Authority is the authority on London and is a great place to get advice and recommendations. You can easily find their address and phone number along with other organizations through search engines on the World Wide Web . It is also a good idea to ask for letters of recommendation from past clients.