Another idea to save bags would be to allow shoppers to scan produce and bag all their produce into one bag as they shop. That would avoid the use of multiple bags and avoid hygiene issues with lettuce rolling around in a dirty cart. There is a new grocery store, called Bloom http://www.shopbloom.com/ that appears to be trying this out. They let the customers use hand held scanners while they shop. I haven’t shopped there yet, but they must double check based on weight when the shopper checks out.