It’s a logical next step. Just check out some quotes in this recent article referring to a woman that house sits to support her art:

-Cleans, cares for the pets, and tends to the plants…

-Gets a nonstop tour of San Francisco’s different neighborhoods, and a rare answer to that abiding question for all city dwellers everywhere: What’s it like in that apartment? And that one? And that one?

And a market snap shot?

“There are so many empty houses in this city, all the time, which is amazing given all the people who can’t afford to live here.”

-Professionally homeless, to finance the sex talk [sfgate]

-Tour de San Francisco (real estate) [sfnewsletter]