MP's should come from, and live in, their constituencies.
Serviced accomodation should be provided for those for whom commuting is out of the question, during the days parliament is in session.
There is nothing quite so disgusting as watching some party hopeful being parachuted into a constituency they have never even visited, in order that they may stand as their paliamentary candidate.
I think the most glaring example I can think of, is Sir Teddy Taylor, one of Maggie's darlings. Who having lost his Glasgow seat of Cathcart, to John Maxton in a Scottish, Tory wipeout, stood for, and was elected as, MP for Southend.
Well was he christened by the press, as a carpetbagger.