GTA Hotels have some really good room rates in all the major european capital cities, including London. 

Great value airport Executive Lounges around the world from just £12 per person.  Includes LHR and LGW.

Worldwide access to Villas, Apartments, and Cottages in over 25 countries with Jolly Rentals.

Purple Parking covers all major UK Airports with some of the best rates around.  Includes Meet and Greet.

Warner Breaks provide UK short breaks for adults at stunning locations with a wide range of activites.