Ask HN: Airbnb for office space, or anyone got some space?

I'm in SF for the next 2 weeks and looking to see if I can do a bit better than a laptop on my lap to work on.

Is there something like Airbnb for office space?

Failing that, anyone got a spare desk I could use? Would be awesome if it included a nice big monitor I could jack into. I can pay. :)