Want to help the environment? Start small and use technology, according to Patagonia Inc.

The retailer recently overhauled the way it processes paper hang tags. Paper hang tags are still attached to each piece of clothing and include information about the brand and product. But Jennifer Patrick, global manager of packaging and branding, found a way to use QR codes and reduce paper hang tag versions from 453 to 20. That’s 170,000 pounds less landfill waste generated in a single season.

There are other advantages, too. The cost of assigning hang tag projects, designing, writing, managing, and fixing problems all adds up, Patrick says