That's because thousands of yellow, pink, cyan and neon green Post-it notes with messages from people who got a shot blanket a wall at the Seymour-Hannah vaccination clinic in St. Catharines, Ont.

Playtime: The Post-It Note Drawings proves you really can make fine art with just a pen and a few Post-It Notes. Check out our exclusive preview of this gorgeous art book.

The notes have now gone viral. — -- A stay-at-home father of two found a way of letting his wife know exactly what happened while she was at work: Post-it notes. Chris Illuminati began ...