Standard yellow sticky notes are the most common type in stores. They were the first-ever sticky notes, and their bright yellow color was chosen to stand out on white paper.

Originally small yellow squares, Post-it Notes and related products are available in various colors, shapes, sizes and adhesive strengths.

Sticky notes can be used for countless things. They're great for personal organization and to-do lists. They can be used as a bookmark or to attach a note to something. Stickies can also be used for important reminders like birthdays or anniversaries.

The notes became an overnight success. "It was always a self-advertising product because customers would put the notes on documents they sent to others, arousing the recipient's curiosity. They would look at it, peel it off and play with it, and then go out and buy a pad for themselves."

During a recent study at the University of Maryland, sociologist Philip Cohen asked nearly 2,000 men and women a simple question: “What's your favorite color?” Blue turned out to be most popular across the board, followed by green for men and purple for women.

Red. Red is a prevalent color that many companies use in their marketing campaigns. It's supposed to convey energy, love, strength, and excitement. If you want to encourage your target market to do something specific, red could give them the motivation to do so.

The glue in Post-It® notes is a combination of a pressure sensitive acrylate (PSA) and microspheres, which are synthetic polymers that won't dissolve or melt down.

Arthur FryAlan Amron Post-it note/Inventors

The Post-it Note Was Invented - By Accident (1968) When Spencer Silver, an employee researcher at 3M, was trying to create a stronger adhesive for the aerospace industry, all he ended up being able to create was a weak adhesive that could easily be removed without residue.

Yeah I have enough surface area to stick the things but easily remove without damage the paper is set through a giant oven dry the glue. And keep it stinky.

In 1968, Spencer Silver, a scientist at 3M's headquarters in Maplewood, was working to create a strong adhesive. Accidentally, he developed a new material that was light enough to easily remove and peel apart. Silver felt that he had invented something unique and useful but struggled to find what that use could be.

Post-It notes came about as a by-product of another invention. Dr Spencer Silver, a 3M scientist, invented a repositionable adhesive but didn't know what to do with it. A colleague of his, Art Fry, had the idea of a bookmark that would stay put in his church hymnal, and the rest as they say is history!

The most popular color in the world is blue. The second favorite colors are red and green, followed by orange, brown and purple. Yellow is the least favorite color, preferred by only five percent of people.

There are 12 main colors on the color wheel. In the color wheel, these are Red, Blue, Yellow, Green, Orange, Purple, Amber, Vermillion, Magenta, Violet, Teal, Chartreuse. The color wheel is divided into primary colors, secondary colors, and tertiary colors.

Red makes you hungry, blue calms you, while yellow gives you a pick-me-up. Color psychology - leveraging colors to produce an effect - can influence 85% of customers' purchasing decisions.

In marketing, colors can help your brand stand out from your competitors by influencing how your audience sees and perceives your message. If you create print collateral that perfectly blends your copy and color strategy into the design, it won't be easy for your audience to ignore them.