Try and imagine any trip to the stationery store when your fingers didn’t itch to grab a stack of yellow Post-its to help organise your thoughts on that 400-page report.
And yet … it’s just paper and glue. The Post-it is proof that the simplest ideas are often the most effective. This doesn’t mean that its genesis was a simple process, however.
Back in the late-1960s, Dr. Spencer Silver of 3M was working on an ultra-sticky glue, and instead came up with a glue that couldn’t bond with any surface permanently. He launched his product without much success, and kept tinkering.