Brian Keegan: Getting used to not paying for things you use

Rooting for loose change on the dashboard at a toll plaza is an immediate reminder of the infrastructure cost of the roads and bridges we drive on.

Ireland is not plagued too much by motorway tolls in comparison with many other countries.

But in a taxi on the highway between the airport and downtown Johannesburg a few weeks ago, the driver apologised for the almost constant beeping from the electronic toll tag system stuck on this windscreen.