Oyster cards and contactless Hold it down , don ' t smash it repeatedly against the reader at high frequency . Don ' t wait for the gates to close after the person in front of you , touch inout as soon as the reader is ready . Not working ? After the second failed attempt , stand aside and let other people through the gate . If a gate is left open for season and paper ticket holders , don ' t block it to touch out with your payasyougo . When touching out , stand close to the reader . Don ' t block half the station with your Mr Tickle impersonation . <| sep |> Yea i expect it will get pretty cold but just avoid the added wind chill . I could put the trees on the bottom but its all cement , not dirt so i wouldn ' t expect to be any better . I have those warming pads that go under germination trays i could use or even a small electric heater but not sure how well the heater will work since the plastic isn ' t much of an insulator