We're planning our itinerary for getting from our hotel (Kingsway Hall Hotel at 66 Great Queen Street) to Waterloo to catch the Chunnel. The journey planner on the Tube website suggests taking a bus. Is it difficult to take a bus with luggage? (It will be around 9:30 or so on a Wed morning.) Would it be better to take the Piccadilly line from Holborn to Leicester, then take the Northern Line to Waterloo?