What happens when tens of millions of fantasy-sports players are suddenly able to bet real money on real games? We’re about to find out. A recent Supreme Court decision has cleared the way to bring an estimated $300 billion in black-market sports betting into the light. We sort out the winners and losers.

The quirky little grocery chain with California roots and German ownership has a lot to teach all of us about choice architecture, efficiency, frugality, collaboration, and team spirit.