title: find open source consumer dataset
body: <p>A while ago somebody gave me a tip about which forum to post questions about finding open source data sources on stackexchange, but I don't remember which forum.  If someone could let me know that would be great.  </p>
  
  <p>I'm trying to find an open source data set that has consumer purchase related data, with fields like:</p>
  
  <p>purchase timestamp, delivery timestamp, customerId, store chain, store department, product category, product company, product brand, product size, purchase quantity, purchase amount, offerId, product price</p>