Another Day, Another ___?

So here in France, I was able to make a friend who I didn't meet through anyone else; meaning that yes, I am capable of autonomous social interactions.  Sadly, he is another Anglophone like me, but instead of American, he is from Ireland, so even though we both only really speak English to each other, it's still slightly different, so I am getting some variety.

While this friend of mine, Scott, uses some sayings that are really only used in the UK, I heard him say something that I hear in the states- and that took me for a loop.  "Another day, another dollar."  It may not sound weird to the average person, but remember: they use Euros over here.  Dollars won't get you anything over here.

Does that means that people who say this think what work they did was for nothing?  What if, when I went back to United States, I started saying "Another day, another Euro?"  It definitely wouldn't work in Japan either, with one Yen being worth about one cent.  Maybe if I was really obsessively choosey about how I get payed, I could say "another day, another pound," because, after all, Britain seems to really like their own personal currency in lieu of something nice and standardized that exists for almost the entire rest of Europe.

Maybe the Europeans secretly know that one day the Euro will crash and the only the American dollar will be around to save the world economy, as weak as it might be.