Blue Part On The Eraser
These erasers were very popular when we were schoolchildren. There were many theories about the blue part. Some said it erased pen ink! Apparently, there is no truth to this urban legend. You can use the blue part when you use strong and thick paper instead of loose-leaf or notebook paper!
Square Patches On Backpacks
We are sure you have seen lots of backpacks that come with square patches like this. Did you know that you can use them to hold additional gear? The lashing square or pig snout is great when you can no longer fit all of your stuff inside your bag. This is a great solution when you have string cords or strings!