Douglas Harper's Etymology Dictionary
1975, proprietary name.
Wiktionary
n. A post-it note.
Usage examples of "post-it".
He had saved everything, in no particular order: printouts of e-mails were bundled with birthday cards and Post-it notes.
He jotted a name on a yelÂlow Post-it that had been reused several times.
Before making the copy, someone had placed two large Post-it notes over the rest of the page, including, I guessed, the name and signature of the investigator.
A flurry of new Post-it notes suggestive of more progress distracted him.
The CIA officer handed over a Post-it note and pointed to a phone.
A yellow Post-it note, affixed to the article, contained Morrison’.
There, a Post-it note on a teletype machine announced that Chief Superintendent Nolan of Special Branch wanted to be informed at once of any death by fire or accident, and the teletype operator lifted a phone and called the appropriate number.
Down there a Navy petty officer had the number on a Post-It note, and read it off.
A Post-it note was affixed to the front page of the Washington Post, just over an article bylined to Bob Holtzman and John Plumber.
Richard had written the Post-it note to himself, several weeks earlier.
That's why they wrote on the grave and put that Post-it note on the tape.
A Post-it note, a Bic pen, the necessities of life, were lost in the debris.
Not in any supernatural, David- Warner-plate-glass-interface kind of way, but as the mind's little shorthand Post-it notes: incidents or images that reminded you to stay sharp and pay attention.
The congressman always had a pen in his hand, and a nearby pad of Post-It notes.
He pulled the pistol closer then returned to the instruction booklet again, sticking more Post-it notes onto pages, glancing into the shopping bag to make sure he had everything he needed.