Why were Post-it Notes originally yellow?
The creators of post-it notes answered this question via twitter, their response was:
“We were in the labs and if you imagine, this is my lab here, and then there’s a corridor, and then there’s another lab. They happened to have some scrap yellow paper – laughs – it’s absolutely true.”
“They had some scrap yellow paper – that’s why they were yellow; and when we went back and said ‘hey guys, you got any more scrap yellow paper?’ they said ‘you want any more go buy it yourself’, and that’s what we did, and that’s why they were yellow.”