Been in London many times & used the transport system many times as well but the best experience was at Woolwich tube station, when a young TFL worker helped me to carry my case back down the stairs that I had climbed trying to find the platform for the connecting train to London City Airport. In my view he went over & above to help me out. I wish I had got his name but it was around 11/11.30 am on 19th October. People like this should be recognised as it also gives TFL a good reputation instead of all the negatives