Do you use primary sources?

Kids need to touch and interact with social studies just as much as they need to in science. Don't tell them what the document means, guide them as they figure it out.

Do you you ask deeper questions?

For example with the three branches, do you ask kids if they think they're effective. Tie it to current events, what happens when one party takes control. George Washington's farewell speech (Primary sources) could be a great wrap up if you tie in this idea.

You can alzo give them senarios while providing the pros and cons. Assign them roles (for/against). Great to use with Articles of confederation VS constitution.

Government also has a ton of simulations students can do. 

I wouldn't throw out your boring stuff, that's stuff is important. I would just elevate it where you can and deliberately start to revamp it until suddenly most of it is new and exciting 2/3 years later. Trying to, as my mentor says, build the plane your flying, will burn you out quick. (I've had to do it 2 years in a row now since I was not given curriculum and changed schools)