>>MP's should come from, and live in, their constituencies<<

Agreed, just like

Prime Ministers should be elected by the country by general elections, not co-opted in without an election.
In the event of the Prime Minister dying or resigning, then the new Stand In PM should be made to have a general election within 6 months of taking office.
Maybe the PM should be English for the houses of parliament.

I voted for Tony Blair, but I wouldn't have voted for Jimmy (Gordon) Brown.

Oh the chapel bells are ringing
In the houses of Parliament
And the song that they were singing
Was for good old Jimmy Brown

And the little congregation
Prayed for guidance from above
Please stop him being a banker
Cuase he's a proper w**k**
Our good old Jimmy Brown