On another occasion we wanted to know for Shell some information about how people bought petrol. For another firm, a telephone company in Canada, we were able to get companies to respond in very significant numbers to a mailing asking them how much they spent on the telephone each month and where they called. The key in fact to success in this business is not blind trust that you are going to find out something that is certain, but the intelligent use of your own imagination and understanding of customers. So there you are a little bit of certainty in an uncertain world. What's more, it's free.
Problems are only opportunities in work clothes.