Is This The Way To Run Your Ebay Business?

This one has been sitting inside me for awhile. There are a lot of people telling you how to run your Ebay, Poshmark, Mercari, or other type of reselling business. Should you listen to them?

Below are the shipping supplies that I use. (FYI: If you make a purchase using my links, I will get a small referral fee from Ebay and Amazon.):
6x9 Bubble Mailer: https://amzn.to/39w1Faj

9.5x13.25 Airjacket Bubble Mailer: http://ebay.us/z2Xi8d

8x6x4 Box: http://ebay.us/VNiTM2

Accutek Postal Scale: https://amzn.to/3oUBosA

Rollo Printer (once you are shipping a lot of units): https://amzn.to/3bCg3R3