Drawing inspiration from Harrington, I propose the following:
Enlarge the Commons to 3000 or so members. This would reduce the number of voters represented by an MP from the current 84,500 to less than 20,000, bringing the MP far closer to the people, breaking down the party structure and most likely enabling non-party candidates to be elected. This new assembly will be the sovereign body of the nation.
Amalgamate the current Commons and Lords into one body - a Senate, which would be the debating and revising chamber. I will leave the fine print of how it is constituted for another day (what's the hurry? No one's hanging on my words!)
The first criticism that will be leveled is that my new People's Congress will be chaotic and expensive, to which I would say: its function is not to be like the Commons, where all and sundry can stand up and debate. It is to decide, not to debate, in the same way as a party conference does this. In other words, people can give speeches from the podium, but its not a free-for-all. Secondly on cost; the Congress does not have to sit throughout the year, rather meet periodically. Its members can be given a fair stipend for their efforts, but should see themselves more like councillors or magistrates rather than career politicians. Also, as a minarchist-minded man, I assert that there is no good reason for the volume of new laws being generated at present. The Law should be stripped down to its bare bones, set up on sound principles, and then left alone, save a little necessary tampering to keep it running.
The new Congress would, as the sovereign body, perform a function similar to that currently performed (we are told) by the Queen. Rather than a bill receiving the Royal rubber stamp, it would need to receive the assent of the Congress. As the Queen has never, as far as I know, refused to sign any bill, the necessity of obtaining her assent cannot be claimed to be any kind of check or balance on executive power. 3000 people of good will, drawn from the population would be much more effective.