You would not believe how much its helped me.  People ask me how I can be such an agreeable person to work with and I tell them "Easy, I care a lot less than anyone else here.  Matter of fact, I care less than everyone else combined.  So, whatever your idea is, its fine with me."  I often try to start out the day with a great idea and put it out there to be shot down, after which, I can just kick back.  Really, they had my one idea for the day, now it's their turn.