Couch Surfing

I heard part of a radio show about couch surfing. A new plan where you visit people and just camp out on their couch a day or three in order to live some part of the day to day life in a different town. Much like what I used to think of as backpacking, but on a couch instead of a hostel.

Which couch would you want to camp out on? Think of a person living in a place you want to see or just a person you would like to spend time with, seeing the sites. What would your adventures as a couch surfer be?