I chose the Holiday Inn Express in Wimbledon South to avoid taking the car into central London (and facing the congestion charge) and because the hotel rates were cheaper. My ace in the hole was the Colliers Wood Undergroung station literally right across the street. So just my luck that this part of the Northern Line was shut down for the weekend! Fortunately, there was a bus added to ferry us into the city. We cruised around Leicester Square and Piccadilly Circus for a while, ate at an overpriced steakhouse there, and then made our way to Trafalgar Square, the Houses of Parliament, and then along the Thames in a light rain before jumping back on the Tube and then on the bus to go back to the hotel.