For a true display of wealth, dab printer ink behind your ears instead of Chanel No. 5

Litre of the office essential costs as much as 2,410 - up from 1,700 in 2003, finds Which?

Printer ink continues to rank as one of the most expensive liquids around with a litre of the home office essential costing the same as a very high-end bottle of bubbly or an oak-aged Cognac....