The Blue Part Of The Eraser
There were lots of rumors surrounding the blue end of erasers in our youth. The most popular one was that it could erase ink! Sorry, but that is not the case. In reality, they were made to be used on thick and strong papers. On the other hand, the white part is meat to be used on loose-leaf pages and notebooks.
The Square Patches On Backpacks
What are the square patches on backpacks for? They might look neat, but they also serve a purpose. You see, they are used to hang more stuff than you can fit inside the bag. The lashing square or pig snout comes in handy when you are camping. You just need to get a cord to tie your stuff.