Research your ideas by using google images and saving those pages. Look at colors, materials used, and the over feel of the room. Using some sites even give you the info on where to buy the products illustrated in those photos, which can be very beneficial. Save all your data and make a few selections and say yes I have narrowed the options. Bring your wishes to your contractor and develop a relationship. Developing a relationship with the contractor will educate you on your ideas and dreams. Consider his or her advice while keeping an open mind. There may be obstacles that you may have never considered since you haven't had the experience that a contractor may have had. More bathrooms, more experience, means more education. Find a contractor who will consider your dreams and make it their duty to get you there.