Some good suggestions from the man who spent more time in Congress than anyone else.
I am personally torn on abolishing the Senate. I think going to a proportional representation model, instead of the winner take all system which we currently have, would make more sense. Make the Senate proportional to the vote on a national level and make the House proportional to the vote on in individual states.
Proportional Representation: an electoral system in which parties gain seats in proportion to the number of votes cast for them
Abolish the Senate and publicly fund elections.