What does YKK stand for on zippers?

Yoshida Kogyo Kabushiki Kaisha, world's largest zipper manufacturer.

Why Do Men’s and Women’s Shirts Button on Different Sides?

Women's buttons are on the left side because years ago (During the Victorian Era), the women that could afford fancy clothing with a bunch of buttons would rely on maids to help dress them. So, if a servant (most of whom, naturally, would be right-handed) is going to routinely buttoning up a shirt/dress for someone else, that servant is going to prefer to have the buttons on their right side (which would be the left side of the garment).

Recycling one ton of paper saves 682.5 gallons of oil, 7,000 gallons of water and 3.3 cubic yards of landfill space.

McDonald's first menu items were hot dogs - not hamburgers.

McDonalds' Caesar salad is morefattening than their hamburger.

The smell of chocolate increases the brain waves, which triggers relaxation.

The average person spends 3 months of their lifetime sitting on the toilet.

Computer Keyboards can carry more than 200 times as many bacteria as a toilet seat.