Quote ="Cas Man"I have bought tickets to the Wembley double header, having not been to London in a while, we are arriving at London Kings Cross, is it best to book tickets in advance to get to Wembley via Kings Cross or is the Oyster Card the best option?
Cheers'"
If you are just travelling to Wembley and then back to KX, then probably not worth an Oyster card.
Otherwise, definetly. I think you can still get them online. When I got one it was a case of £5 deposit, which could be refunded if the card was returned. Not sure if that is still the case.