To finish up with the sunset law - It would require a super-majority (either 60% or 2/3rds) to renew a sunset law.
There is one exception to the term limits and benefits - the president stays the way it is. Electable for two terms of four years and as president he or she is entitled to permanent benefits for life for their service.
Some other things that would help would be a balanced budget amendment (I know beating a dead horse here - but it should be done). Reduce the maximum salary of ALL government employees to not more than 150% of the average income in America. Individuals should not work in the government to become rich but to serve the American people. If you want to become rich, work hard and create something you can sell.