I've learned to dismiss these articles entirely. They're all about optimizing something that shouldn't be optimized and doesn't work for most people. It just serves to make people feel bad about packing an extra suitcase, just in case.

Just go on a trip, and do what you want to do. You don't need a philosophy behind every little detail - I find this takes away. People care more to brag about how they travelled with just 1 bag than tell you about the places they actually went...