Wife Swap where two families switch Mom's for a week to discover how other families live and tackle all of the issues that come up when you're living as a family.
Today I was thinking, when I am writing a lot it can be easy to get stuck in a rut and start writing in circles. There are lots of different writing exercises out there to get our creative juices flowing. But maybe the next time I get stuck in a rut I'll send an email to one of the other writers I know and ask what THEY are writing. Coordinating a swap with someone else stuck in a rut and switching ideas could help out a lot. What would happen if a Romance writer wrote a Mystery Thriller? Or a Journalist wrote a Fantasy?
Even if you don't know someone else who writes, you can swap genres yourself. Head to the library and go down an aisle you wouldn't normally travel. Pick up a book outside of your comfort zone and see if you can write something similar. Mix it up a bit, and you may learn you have strengths you didn't know you had.