The following websites will help you plan your journeys to and from Danemead.
The Trainline : Helps you to save money on train tickets.
Transport For London Journey Planner: If you plan on visiting central London, this helps to plan the journey.
Transport for London Oyster Card: Everything you need to know about the Oyster Card scheme. In particular, you will need an Oyster Card if you plan on travelling on London buses.
Travel Maps of London: Just about every sort of map you could need to get around London.