Our family owned restaurant has been in the business for almost 5 years now. We are doing well but I think, we need some changes. Maybe change the menu? Or the look of the shop? A friend suggested that we do surveys so that we know what our patrons want. I don't have any idea how I should go about this. Any tips or advice? Is there a cheap but effective way of doing this? Is there a company that provides service for this kind of thing?