I used to do a lot of work in retail (mainly apparel), and I’d love to eventually see more kinds of racks and fixtures to put things on.
For example: a RL clothing store can fit about twice the amount of product if you use wall mounted fixtures. So clothing racks that attach to walls would be cool.
Or a bakery case that can hold two types of products, to cut down on the amount of fixtures needed.
Or a cash register counter that doubles as a holder for tobacco.