Of late I have mentioned Pontoon a fair bit. But I have realized that I have never really explained Pontoon.
Pontoon is a blackjack version that is said to hail from England, although it seems to crop up most from Australia. But then Australia was essentially founded by England so there you go.
Pontoon is played with four to eight decks, with the 10s removed from each deck. So the only cards worth 10 in game are the face cards. This has the same effect as removing cards from deck in regular blackjack