Gillette's Razor-And-Blade Playbook

Selling razors cheap, blades dear

How Warby Parker Disrupted Eyewear

Direct-to-consumer model reshaped eyewear retailing

Inside Crocs' Business Model

How a mocked clog built billions

How FabFitFun Makes Money

Seasonal boxes, add-ons and brand partnerships

Toms Shoes' One-for-One Reckoning

Charity shoes, then a creditor takeover