At the grocery store today, I stood staring at my fish options—everything looked good, and some of that fish was reasonably priced. But I couldn’t remember which fish was the "right" fish to buy. And I didn’t have that little card from the Shedd Aquarium to help me support a sustainable fishing industry. I left without buying any fish.
Here’s a copy for downloading and keeping in the wallet, from the Shedd’s website.