Is my reading comprehension in the toilet or was that a paragraph of non sequiturs?

He’s writing about real life, and not everything in real life is neatly ordered.

Yes, he could do a lot of his tasks online, but that would mean giving up the random pleasures he enjoys by going out and interacting with the world.

Oooh I see it now. I think what threw me off was my confusion about putting envelopes in a closet. So when the rest of the paragraph had nothing to do with that my brain just blue screened.
The envelopes in the closet thing is that he could just buy a ton of them at once so he doesn’t need to walk to get them one hundred times. That would be the most efficient option. But it’s also the most boring.