Also called Youshi post, n times post, post it note
Post it note is a kind of note paper with sticky back and small volume. It was founded by Arthur Foley in 1974.
The sticky sticker on the back can write down what you want to do, then tear it off and stick it in an easy to see place to remind yourself of your to-do list. It can also be used to inform people of information, which is very convenient. That's why it's called "post it notes".
For the sake of beauty, convenience stickers have more and more styles and colors.
Post it notes are very convenient. You can take it in your bag or book. It can easily solve some things that are easy to forget but want to remind yourself.