Post it notes are the original self-stick notes. From a simple basic idea, Post-it sticky notes have become an indispensable part of home and office life. The easiest ever way to post a note to a friend, colleague or family member, Post-Its are now used universally and are available in a wide range of shapes, colours and sticky pads. Sticky notes stick to almost anything - mirrors, fridges, PC screens, anywhere you can stick it to get noticed.