Last week I received a flyer from An Post (the Irish Post Office, if you’re not from these parts), telling me that “An Post sells Sterling and Dollars COMMISSION FREE”. Well, who doesn’t these days? It seems to be the standard line everywhere; banks, bureau de change at the airport, and also most of the online brokers specialising in foreign bank transfers. What does it actually mean? Not a lot really, and in fact I believe that its use is often deliberately misleading.