What's the first thing you'd do with your Mac on your phone?

DuoBook puts your whole Mac on your iPhone: check a long build from the couch, fix something on the Mac mini plugged into the TV, work from the other room without carrying the laptop.

If you had your Mac in your pocket, what's the first thing you'd actually use it for?

I'm collecting real use cases to decide what to build next, so no answer is too small. — Mehdi