Printer ink

Comparison of luxury or costly liquids - price per milliliter

Multicolor inkjet cartridge ..............................$ 5.14
Black inkjet cartridge .....................................$ 3.33
Prada atomizer parfum ..................................$ 1.19
Dom Perignon champagne (1998).................$ 0.17
Gasoline .......................................................< $ 0.01

See : http://www.aci-citizenresearch.org.

I didn't know it was that bad !