Here's Something You Never Knew About These Everyday Objects

Pen Cap:

Some people think the hole in the cap of a ballpoint pen is there to keep the pen from drying out, but the real reason it's there is much more straightforward: It's there to lower the risk of suffocation. If a small child was chewing on the cap and accidentally swallowed it, that hole would keep their airway from closing up entirely. This is also true for some lollipop sticks!

Jean Pocket:

The purpose of this little pocket is obvious to any Wild West cowboys or 19th-century gold miners. It's where people used to keep their pocket watch when jeans were first invented and the design stuck around!

Airplane Window:

Ever wonder what that tiny hole in an airplane window is for? It’s there to compensate for air pressure. When the plane climbs to cruising altitude, there's a huge pressure difference between the inside and outside of the plane. The hole is there to regulate some of that difference so that the outer window doesn't have to do all the work. Plus, it also prevents the windows from fogging up!

Juice Box:

The flaps on either side of a juice box will fold up to make it easier for little kids to hold. Little hands sometimes have trouble holding a juice box without squeezing it! Thankfully, there's this solution.

Car Dashboard:

Have you ever parked in the gas station only to realize that your gas cap is on the other side? This little arrow will point you in the right direction. It indicates which side of your car has the gas cap!

Converse Shoes:

Have you ever wondered what these two small holes are for? They're there for ventilation, especially if you're not wearing socks. But some people also claim that they can be used to lace the shoes even tighter. Pretty cool, right?


When is the last time you took a close look at your keyboard? Those small bumps or ridges found on the F and J keys on a computer keyboard actually have a purpose. They can help users correctly position their left and right hands without having to look at the keyboard!

Tic Tacs:

Maybe you've noticed the little indentation on the lid of a package of Tic Tacs before and figured it was there to tightly seal the container, right? Well, it also serves as a dispenser that gives you one Tic Tac at a time!


Ever notice a little hole in the bottom of a padlock? That little hole is there for a few reasons. The first is that it lets water drain out of the lock if you're using it outdoors, so it won't rust in the rain or freeze and break in the winter. The hole can also be used to oil the lock to keep it working well.