Money, Money, Money
In my copious spare time, I am a notaphilist (i.e., a collector of bank notes). In the not too distant past, individual banks issued their own notes. However, today, apart from in N. Ireland and Scotland, central banks around the world have a monopoly of the note issue in most economies. At Feb. 2011, Northern Irish and Scottish banks had a staggering £1,900m and £3,500m of notes in circulation respectively. As regular travellers across the Irish Sea realise, these notes are not legal tender.