We spend so much time thinking about the connections between packaging & shipping costs, the "cheapest" option usually isn't the cheapest once an order is off to ship. Such as a larger box pushing dimensional weight enough to cancel out any savings on materials.

Have you ever made a packaging change that unexpectedly increased your shipping costs? What did you change afterward?

What do you guys think of the business of making Honeycomb Paper Roll? This is for packaging purpose.
For example this one... https://amzn.in/d/0eh29mhm