Regarding cash vs credit card. Google already has your credit card data too. > Google says it has access to roughly 70% of U.S. credit and debit card transacti

Regarding cash vs credit card. Google already has your credit card data too. > Google says it has access to roughly 70% of U.S. credit and debit card transactions through partnerships with companies that track that data. By matching ad clicks with this data, Google says it can automatically inform merchants when their digital ads translate into sales at a physical store. http://www.latimes.com/business/technology/la-fi-tn-google-ads-tracking-20170523-story.html http://www.latimes.com/business/technology/la-fi-tn-google-a...