Had a "Big Daddy Size" Dad's root beer for lunch today. One liter was more than enough to last until dinner.
It's funny, because I also have an old "Big Daddy" bottle of dads from the 60s and it's only 16 oz. Now the same product is a liter!
It used to be 12 oz. was a standard size bottle. Now the 20 oz seems to be the norm. We're such fatties.