My mother still has much of her 40+ year old Tupperware in active usage.

Another brand that is synonymous with my '70s experience. 

I remember learning in high school French class that the French refer to all cameras as Kodaks.

It is sad to hear (at least as much as Woolworths high street demise a few years back). I wonder if Tupperware's downfall was in that their products were just too good. I mean, how often would you need to replace them?

Craig, he pointed out that Tupperware is mostly going the way of Fuller brushes: they used to be sold door to door, but you can just go into a store or online and find something comperable or even better. 

We have a few pieces of Tupperware that my parents bought a long time ago. One had a lid that's no longer usable because its warped. We buy Rubbermaid, or Walmart's Great Value brand, depending what we're using them for. (Rubbermaid if its actual food that's going to be taken somewhere or refrigerated, Great Value for storing things like pasta, sugar, flour, coffee grounds, etc. that go into a cabinet or on a shelf.)