It's not worth starting a separate thread over, but I'd be curious to know how people's significant other participates, or doesn't. I have the best possible situation - Mrs. Redtop doesn't get involved, puts no restrictions on me, she just uses whatever credit card(s) I tell her to, and doesn't even care to know what cards I have applied for in her name. I make it easy in return by not switching cards on her more than every 6-12 months, and taking care of minimum spending without her. I'm sure some people's SO has the opposite attitude, an absolute ban on extra applications in their name. I'm lucky in this regard, but I guess she's lucky also that she gets all the travel benefits with none of the work.
That's the way it works here as well. I have found this thread inspiring as well. As a person that has not been participating in manufactured spending, I fell I need to make the time to read up on all the possibilities.