Well, well, well... as the retail banks in the UK try to steer us away from cash, by making getting & banking cash more difficult (and for businesses more costly) the European Central Bank is now advising people in the EU (but this is essentially general guidance) to have enough cash in the house to ensure they can access food & other essential services for three days.... to mitigate the threat of digital payment & accounting disruption - by failure or cyber-attack!