12.9 is the cheapest I have bought.21.9 is the cheapest I have seen it when not in a gas war.
Gas is still relatively cheap, tho. It is not over 140 times as much as it was then, regular price.
I went to the dentist last week and ask for a price to have a tooth removed. 285.00
In the 1950's, you could get a tooth pulled for 2.00.