Costco intentionally moves products around, so anythong besides the bakery and butcher wonâ(TM)t consistently be in the same spot.
As for courtesy, that applies in the Pacific Northwest (where Costco actually startedâ"donâ(TM)t give me the bullshit about LA since thatâ(TM)s about Price Club that merged with Costco), but not in the bat area where ironically all the people from crowded countries like China and India block the isles.
The growth of Kirkland Signature isnâ(TM)t a good thing. It reflects how Costco has progressively replaces name brand products with their own house brand.