did anyone here use Trapper keepers?

[Bizarro Amy]

Part of the annual back-to-school ritual was picking out what kind of Trapper you wanted, keeping in mind that you had to carry it all year.

[vintage spideyfan]

Used to set them as an impromtu fortress on quiz day to deter would be cheaters...lol

[boynightwing]

I sorta remember these from when I was in school. I think I had one.