TfL has today confirmed that by the end of next year it will have upgraded all bus, Tube, DLR, Tram and Overground Oyster card readers, so you will be able to pay as you go with your bank or credit card.
Buses will be upgraded in time for the Olympics. Users of Ladywell, Crofton Park and St Johns will be at the mercy of the train companies, which TfL is in discussions with about the technology.
To use them, you'll need to be issued with a contactless card by your bank or card company.
Fans of cheques will still be able to use them to pay for dogcart rides to Baker Street, leaving Lewisham every fortnight (2s 6d).