> another piece of paper that's the only proof you have that this transaction ever took place. This one of the good points of cash. Data mining is just creepy

> another piece of paper that's the only proof you have that this transaction ever took place. This one of the good points of cash. Data mining is just creepy. [1] http://consumerist.com/2012/02/17/target-figures-out-teen-girl-is-pregnant-before-her-father-does-sends-helpful-coupons/ http://consumerist.com/2012/02/17/target-figures-out-teen-gi...