Many people think the purpose of the hole in the handle on pots and pans is so that they can easily be hung up. The actual reason is to be able to rest a utensil in there, perhaps one that you are using to stir with.

Those little flaps on the side of juice boxes are actually for children to hold onto while drinking. Kids can be a little messy, you see.

You may have noticed a little hole on padlocks like this. The purpose of this is actually to allow water to drain from the lock and to pour oil into to prevent the lock from getting jammed up.

It was actually the Navy that invented the little loops on the backs of shirts and it was so they could hang their shirts up. Later in the 60s, college students adapted the loop to prevent their shirts from wrinkling.

No, it’s not so the golf balls look cute. There is an actual purpose to them. At some point, some avid golfers figured out that balls with little nicks and bumps on them traveled farther than those without. The industry adjusted and now golf balls have dimples.

Have you ever noticed there is a little hole next to the camera on iPhones? This is just a little microphone. iPhones have 3 of them on most phones, one at the bottom of the phone, one under the speaker, and one right next to the camera.

This is very handy for anyone who rents cars from time to time. The arrow on the gas gauge meter is pointing towards the side of the car where the gas pump is located.

There are little clips on the side of a Macbook charger that you can wrap the cord around. Many MacBook owners are completely unaware of this.

Have you ever noticed that many doorknobs, especially in older buildings, are made from brass? The reason for this is that brass is particularly resistant to bacteria and germs. Considering how many people use doorknobs regularly, brass just became the hygienic choice.

Your takeout food is more crafty than you think. You can actually flatten out the container to use as a little plate.

You have likely noticed that many bottle caps have a little flat disc in there. Sometimes little slogans or jokes have been put on these but they actually serve a purpose. The disc helps keep carbon dioxide trapped in the bottle and the drink fizzy.

There’s a reason why bottles often have very long necks. It is to encourage people to hold them by the neck and not the body. This prevents your hands from warming up the liquid inside.

There is a reason why bobby pins have a wavy side. This is to catch any clumps of hair and also to stop the clip from sliding out of your hair.

Perhaps you’ve seen these on airplane windows and been terrified thinking your window was about to crack. These are actually called “breather holes” and they are there to help cabin pressure stay stable as the plane climbs.

There are bumpy ridges on the sides of many coins in the currencies of various countries. This is to prevent people from shaving the coins down and melting them into new and different coins.

Have you ever noticed that there are little bumps on the F and the J on a keyboard? This is simply a way to help the user find the proper keys. Your index finger rests on the F and the J while typing so if you feel the bumps then you know your hands are in the right spot.

The origins of why we use margins on lined paper is sort of disgusting. It’s because rats so regularly feasted on the edges of paper that everyone just decided to write the important stuff where the rats won’t get at it.

If you have ever wondered why the tabs on soda cans (and other drinks) have holes in them, they do serve a purpose. If you turn the tab so it covers the mouth of the can you can stick a straw through there and it will hold in place.

There is a good chance that you have your ear buds in upside down. For many ear buds, the round part is supposed to face down to the ground. The cord can be wrapped over your ear as well for added stability. If you’ve ever noticed that ear buds fall out of your ears too easily, this is likely why.

Toasters have a little slide at the bottom that you can open up and clean out all the bread crumbs. Be careful when you go to check this, however, as you might dump toast crumbs all on your kitchen floor…or so we’ve heard.

There are ridges on the bottom of salt and pepper shakers. The reason for this is that if one becomes clogged, rub the bottom of the other over it and the ridges will help unclog it.

On the side of many wrap or foil boxes there are little tabs that when pressed in will keep the tube sturdy. This makes it easier to tear off a strip.

Many take out cup lids can be used as coasters. There are often 3 little bumps on the lid that will help keep the cup in place.

Similar to how takeout containers can be flattened out to serve as a little plate, so can those tiny condiment cups.

Red solo cups are the standard drinking container for house parties everywhere. Did you know the ridges on the cups serve a purpose? The smallest line on the cup (near the bottom) measures out to a 1-ounce shot of alcohol. The second line from the top measures 10 ounces, or a standard glass of wine. The top line measures 12 ounces, or a serving of beer.

It’s not like wrist sweat is a leading cause of body odour or anything. These wristbands are actually designed to allow runners to wipe the sweat from their forehead easily.

Those little cozy balls at the top of beanies actually used to serve a purpose. Sailors would use them to prevent them from hitting their heads on things.

Wooden clothing hangers are very popular, even though they are more expensive. The hangers are made from cedar, however, which is known to repel bugs, keeping them off your clothes and allowing them to last longer.

There is a reason why the headrests in cars are detachable. You can use the two metal bars to smash open a window if you are trapped inside.

There are two leading theories as to what this hole is for. The first is that it allows you to drain excess water from the pasta. The second is that it can be used to measure out the perfect serving of dry pasta by sticking it through the hole until it’s filled.

There is a very good reason why pen caps have a little hole on top. It’s because they are choking hazards for children but the little hole allows air to flow through if they are swallowed.

Do you have a pocket watch? No? Well, that’s because hardly anyone does these days but that’s what the tiny extra pocket in your is jeans designed for.

Remember those double-colored erasers in school? No, the blue or darker side was not for erasing ink. The darker colored side is actually for using on more delicate paper, the kind artists often use.

If you unscrew the top of a new tube of toothpaste, flip over the cap and use the pointed part of the cap to puncture the seal underneath.

Many toothbrushes nowadays come with multi-colored bristles. This isn’t just a cool design, the colored bristles serve a purpose. The colored dye is designed to wear off at just the same time as when you should replace your toothbrush. So when the color is gone, it’s time to get a new brush.