"Why flog a dead horse ?"
That is definitely not Bacon.
Take a west bound district line train indicating Richmond or Ealing Broadway, change at Hammersmith (it is a cross platform change there) to a Piccadilly line...
"LNER talk about allowing 30x70x90 luggage"
That is probably the maximum size that fits in the overhead racks, there is usually more stowage space at the end ...
A bit too far to walk perhaps depending on where your accommodation is.
Gopals Of Soho is quite good, http://www.gopalsofsoho.co.uk
Masala Zone mentioned above is quite good too.
"We'll be staying near St Paul's"
You will be quite near a Forum favourite pub The Blackfriar.
230 Volts is the nominal Voltage In the UK, the tolerance for our electricity supply is 230 volts -6%, +10%. This gives an allowed voltage range of 216.2 volts...
"Any idea if this includes Canadian Visa cards which can be tapped? "
If your card has the contactless symbol it should work.
If a device is double insulated it should have this symbol, http://bit.ly/2B3F8k3
You will have to do your own research regarding Xmas opening times, I have had nice meals in these Chinatown Restaurants.
Orient London , Tao Tao Ju , New Lo...