I've long thought an entirely random selection "civic house" in legislative branches would be an interesting check or balance to the current interests and status quo. Make serving for legislature something like jury duty in that you just randomly might be asked to do it for a few months. In the age of internet communications you can presumably do it in such a way that the random selectees will not see much impact on their "normal lives" and jobs... in fact that could be a useful selective pressure against certain forms of politicking ("I can't listen to this filibuster all night, I have to actually work in the morning.").
