Cub Foods West Region announced today that it is launching biometric payment technology in all of its 65 stores, allowing customers to pay for groceries with a finger scan that is linked to their financial accounts.

It effectively eliminates the need to carry cash, checks, and cards. Cub Foods says the payment system will be available in all of their stores by November 30.

The system does not work from fingerprints, however. The system, called "Pay by Touch", instead creates a set of 40 data points that cannot be reverse engineered into a fingerprint. The data points are encrypted and converted into a mathematical equation that allows for a secure identity match at the point of sale.

Imagine being able to assign a different credit card for each finger. "Hmmm, my index finger is for Master Card, my middle finger is for American Express, and ring finger is for... Hey wait, is my American Express on my index finger or middle finger?"