Lined paper margins
Why does notebook paper have margins and why do they differ depending on the grade of the student? For the second part of the question, realize that the older you get, the harder things get. As for the first part, rat infestations were quite common and rats would chew on any paper they found! The edges were added so that even if rodents ate the edges, the important parts could be saved.
Lined paper edges
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Paper condiment trays
Almost everyone loves dipping chips in ketchup, but no one likes coming back to fill the little paper condiment cups. It’s also pretty hard to dip into these cups because they are so tiny. Well, unfold the cup like this and your life will be so much easier!
Paper spice cups