I can remember the 70s very well. I studied for my O levels by the light of a Tilley lamp, and when I started to buy my own groceries when I lived in a rented house as a student, I can still remember the horror when a jar of coffee went up by about 50% from one week to the next. When you're completely new to it - I was 19 years old, with no knowledge whatsoever of how to look after myself - those kinds of price rises can be quite discombobulating. I don't remember things disappearing, (ye gods, I'm sure I'd remember toilet roll disappearing
Oh, about Just In Time: I saw a documentary about the power plant in ... Hull? ... that runs on imported biomass now. If deliveries of the pellets dry up, it has a maximum of about six hours on hand to cope. After that, it shuts down