I have had some boxes come through with some vintage stickers and I normally just leave them. Late model boxes in nice shape, I will remove them.
Don't think I ever put a sticker on a box but I may have.
As to logo clothing, I have several tool truck jackets that I have bought cheap at auctions NIB, that I wear for work. Hats, too. Most of my other baseball style hats are freebies, so I wear them. I likely woudn't buy a logo shirt or cap otherwise