I want to see a "right of recall" clause put in. A sort of "vote of no confidence" thing where if the people of a state feel that their representatives are sucking they can replace them.

Give them one year safe so that at least you can see what they are going to do (most legislation takes that long to take effect anyway), and then after that the gloves are off. Not working for your district's or your state's best interests..then you're no longer working for that district or state. Simple, effective, and it ought to put the will of the voters back where it belong..front and center in the minds of elected officials.