Cash in the cupboard for life’s essentials | Brief letters

Smart money storage | The root of solving crosswords | Pink rabbit birthday treats | Chancers and buffoons | Facebook factsWhen my father died in 1982, I retrieved the cash box (green, metal, with a lock) on a string, hooked to the back of a cupboard. In it were cigar tins labelled Insurance, Holiday and Electric, with a sum of money in each (Cash makes surprise comeback amid 4.6% annual rise in ATM withdrawals, 7 January).
Mike Morris
London• Besides being the basis of many languages,