The contactless payment feature on your bank card is ideal for speeding up minor purchases, and soon it'll be able to replace your Oyster, too. London buses have supported contactless payments for some time, and Transport for London (TfL) has today announced that come September 16th, they'll get you through the barriers at Tube, Overground and DLR stations as well. The benefit of using your bank card is you never have to top it up, and in addition to the daily cap on travel charges already in place, any method of contactless payment will also be subject to a new weekly cap (Monday to Sunday), whereby TfL figures out the cheapest possible fare for that period. You'll be able to keep track of your journey and payment history via an online account, much like you can with a registered Oyster card now. Implementing contactless payments across the wider London transport network comes after a pilot that's been running since April, but TfL are still looking for new lab rats to test the system before its formal launch.