I am a newbie in Bitcoin Forum.I know some of the most important uses of Bitcoin.They are:
1.You can buy a flight ticket.
2.You can rent a hotel room.
3.you can buy pizza and other food related goods.
4.You can use it as a investment vehicle because bitcoin will continue to grow in value.
I want to know other important uses of it.
Almost everything you can do using the traditional currency.
I would add the following to your list: gaming, taxi, gadgets, pet supplies and even underclothes

I believe in a couple of years near the "pay via bank card" fill-in form at all major online trading platforms there will be the same but for bitcoin (or altcoins).