TUAW readers are probably familiar with Gazelle. It's a service, started in 2008, with one goal in mind -- to make it simple for people to send in used consumer electronics devices (primarily Apple products) and receive cash in return. CNET has a fun post today about how Gazelle has gone through many iterations of designing the perfect box for customers to use when sending in their used equipment.
Initially, Gazelle would supply customers with a U.S. Postal Service box and an envelope. Many of their clients figured that they nee