Shirt Loops
This does not only apply to t-shirts, you know. You will also find this on a nice collared shirt! Apparently, this practice began with the Navy. There is not much closet space out at sea, which is why sailors hang their shirts on hooks through these loops. College kids in the ‘60s also used them to keep the shirts neat and wrinkle-free at the gym. These days, manufacturers leave them on as a sign of quality and class.
Gas Gauge Arrow
Perhaps you have already noticed this if you happen to drive a car. Beside the gas gauge of just about every car manufactured from 2010 onwards, you will see an arrow pointing either to the right or left. This serves as a way to remind drivers which side of the car the gas cap is located! If you have been using the car for a while, you might not need the reminder. However, it is useful when you are driving a rental car or a brand-new vehicle. If you ask us, it sounds pretty handy.