She drove home, heart pounding. On her desktop PC, she downloaded the same Dropbox app. She signed in.

Lena was a freelance graphic designer, which meant her “office” was a noisy coffee shop, and her “filing cabinet” was a tangled mess of USB sticks. For three years, she had a system: work on her laptop, save to a tiny blue USB drive, then plug that drive into her desktop at home to back things up.

She opened the latest mockup on her big monitor. Perfect.