At some start-ups, Friday is so casual that it’s not even a workday
It’s Friday afternoon, and the funky, open floor office of Treehouse LLC, a fast-growing tech company, is empty. The lights are off. Rows of computers are silent. The food in the well-stocked pantry, the ping-pong table and video-game consoles untouched. And gone is Monty, the Great Dane that typically lounges on the couch.