My mom grew up in San Francisco. During World War II citizens were asked to contribute to the war efforts in various ways. For small children it was saving foils or rather separating the foil from the wax part of the gum wrapper. That’s what my mom remembered. She said she got really good at it and was quite proud of her accomplishment. Every time I see split wrappers, I think of her. She has made her presence known to me through these small reminders.
Here is an interesting read that comes from Tennesse.