So you've never bought a newspaper or magazine? Bought a ticket for a sports competition? Pay for a TV subscription? Watched a film with product placement in it? Ever seen product advertising in an aeroplane?

Ever bought a paperback book? They all come with adverts for other book at the back, loose-leaf inserts etc.

The concept of partly subsidizing the cost with additional advertising is hardly a new business idea. It would seem almost impossible to never pay for a product with ads as you claim.