I must confess that I am old enough to remember that this was based on an actual brand, "Plain Wrap", which was the store brand of the long-defunct Alpha Beta s

I must confess that I am old enough to remember that this was based on an actual brand, "Plain Wrap", which was the store brand of the long-defunct Alpha Beta supermarket chain: https://pbs.twimg.com/media/CU25MNEU8AAbnvx.jpg https://pbs.twimg.com/media/CU25MNEU8AAbnvx.jpg They actually used to stock all the Plain Wrap items in a single aisle, and the effect was like a consumer sensory deprivation tank.