after looking at some bills, I was thinking how nice it would be to be able to call all the utility and other companies you pays the bills to and charge them for the privilege of having you as their customer, offering them a wide variety of privilege & gratitude 'packages' in exchange for not changing to any of their rivals, as well as you being their 'loyal' customer.
And if enough people did that, it could be turn into quite a good profit area. And of the many companies, I think a certain old, previously state-owned, telecoms monoply might be a good first target 'customer'?