We had this stuff called water... You could use it to clean things...
If someone asked me how old I was - I didn't have to say "29 plus GST"...
I remember jokeing with my mates about how people in certain countries bought bottled water and saying that will never happen here. plus on a hot day you could let the kids play under the water sprinkler and not worry about a water bill.
and that stupid GST, the statements that most items would cost less but some would cost more, yeah right.