Be polite 
I thought this might make a bit of a light sideshow for those getting a bit sick of the current embarassment that is UK politics. In my extraordinarily rich fantasy world, where we have top politicians who care about the state of the whole country (sorry to the hardworking ordinary MP), perhaps it's a good time to get the government out of London. Everything is focused down there and the weakness of one central point has been shown time and time again. I'd like a separation of money and power.
York is the obvious and traditional location, especially if we have any chance of keeping Scotland. Alternatively I'd like somewhere central but relatively small, perhaps not too successfully commercial. Somewhere obviously suffering from the focus on London would be ideal. Derby or Stoke perhaps? Any takers?