This is one of Jack Dorsey's early sketches of what became a $7 billion business

If you think Square's design is simple now... Big ideas usually have modest beginnings. In the case of Jack Dorsey and Square, his $7 billion payments company that launched in 2009, that modest beginning involved a sketch on looseleaf paper and a misspelling of the word cappuccino. On Saturday, Robert Andersen, Square's fourth employee and now the creative director for Square Cash, tweeted an image of the Dorsey sketch. Cleaning out my apartment. Found this old sketch by @jack while we were plan...