Why not start the sacrifice with the legislature?

First, an apology to those who have seen my pitch earlier, but why not shift from a two house legislature to a one house legislature?

The present structure is pure duplication and becomes a shell game trying to figure out who is on first.  Since both houses are elected on the basis of one-man one-vote, what is the point?  If two houses are so much better than one, why not have a legislature of three or four houses?  Does anyone think that would help?