Only once?

I’ve only ever been to one IKEA, but at least for that one, there were somewhat subtle but definitely visible holes in the walls and displays to allow you to cut through the maze.

ETA: Also - again, for that one - if you know what particular item you want, you can find that item’s location on the website and go straight to the warehouse to grab the item off the shelves.

While this is true, I have yet to find a way to do this on any non PC interface. :(