Fast Times at Ridgemont High (2-10) Movie CLIP
In 1960s and '70s-era classrooms, it was an olfactory treat whenever the teacher passed out fresh-off-the-machine purple print “ditto” sheets to the class. Virtually every student immediately held the page to his face and inhaled deeply. There was something so pleasing about the aroma that emanated from the printing fluid—a 50/50 mix of methanol and isopropanol. The sole company that still manufactures ditto fluid in the U.S. only sells a few thousand gallons per year these days, as opposed to the over 100,000 gallons they delivered during the 1970s.