Save money by using contactless or Oyster on the tube and Elizabeth line; fares cap daily

https://archerprfd237.trexgame.net/getting-to-heathrow-by-tube-piccadilly-line-tips-times-and-luggage-advice

Save money by using contactless or Oyster on the tube and Elizabeth line; fares cap daily, and you won’t need to queue for paper tickets at stations.