Sold by a marketing brochure The other day, I came home to find a pamphlet hanging on my front door handle. It was for a plumber. The colourful pamphlet had large, easy-to-read text highlighting their services, including clear pricing and contact information. It was clearly DIY, as I recognized the stock clip art of a cartoon plumber giving a thumbs up. But it so happens that I needed some plumbing work done. Usually, I’d search online or get a referral…