Originally Posted by
DragonSoul
Why do you buy multiple times (instead of buying once and adding value when necessary)?
+1 I still use my old Octopus "student" Octopus (Personalised, with my picture on it). The discount is long gone, but the card works perfectly.
And agree with fellow posters above. The Airport Express counter is literally IN the way and the OP will have to pass past it on their way to a bus or AEL.