Ok so here’s the story of Windex…

In Greece, rubbing alcohol is frequently used as a cure-all for aches and pains, zits, all the stuff we see Gus use Windex for in the first movie. But the thing is that in Greece, rubbing alcohol is dyed blue.

Upon immigration to North America, they sought out the same folk remedy of rubbing alcohol, but it was missing the characteristic blue dye. So they substituted the available item that was a blue cleaning solution…Windex.

So, there you go…