In my humble opinion…
United States representatives (Congress and Senate) should be made to live on a military base in, or near, Washington D.C.
They should live in base housing, shop at the commissary and the Base Exchange, and use the other base facilities. I have done it for years, as have many thousands of others. It is pleasant, not a hardship, but not the life style of the rich-n-famous. This would save the states and Uncle Sam hundreds of millions of dollars.
I think, this way, we could be assured that people running for office are genuinely interested in serving the public, not themselves. They would not have to worry about finding a mansion to rent, entertain lobbyists, hiring servants, throwing parties. They would live on base with their family, go to work and serve the public. Just like they are supposed to do. If it is good enough for our military, it should be good enough for our lawmakers.
Now, knowing that these folks would never-in-Hell let such a thing happen, how could we, the citizens, enact such a thing? Short of an open revolt.