Time to make some money: A new bookofjoe invention offered to whomever wants it — free, the way we like it

· bookofjoe · July 4, 2026, 8:08 p.m.
Summary
The post discusses the concept of double-sided Post-its as a new invention, highlighting the author's epiphany and inviting readers to contemplate the utility of seemingly simple innovations, drawing parallels to the unexpected value of products like private listening devices.
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