Flying onward from London?

Be sure to check out Airfarewatchdog UK for cheap flights from London's airports to destinations in Europe and elsewhere. It's the only site that includes promo code airfares on Europe's discount carriers, plus fares on Ryanair.

One of London's hottest new districts is Spitalfields in the city's East End: great boutique shopping, bustling indoor and outdoor markets, interesting restaurants. Visit London'sOfficial Website for more things to do and see. One of our favorite to do's is Sir John Soane's Museum, an architectural gem that's free to the public. And while a cab ride in London costs a fortune these days, even for short hops, touring London in a black taxi is actually somewhat of a bargain if there are 4 or 5 passengers.
If you need a rental car while in Europe, a good place to search is Auto Europe. They also sell Eurail passes and offer discounted business class fare packages with hotel and/or car.