Small Tiles
And here’s the weirdest trick by far. In sections of a store with expensive items, you might notice that the tiles are smaller.
The reason for this is just bizarre. Because the tiles are smaller, there are more edges for your shopping cart wheel to hit. That generates more noise. Since people don’t want to generate more noise, they might slow down and look at the expensive items for longer, and you just might buy something extra (and expensive).