So... I was thinking about making a huge department store... I'd imagine it would have SO much CC though... might be awkward to upload it! I might start it and just see how it turns out, to be honest. I need a new 'big' project, so... I guess this can be it?!
Try making a department store with Maxis only content, and use the recolors of each item to make it seem like more items are for sale. For example, if 1 chair has 7 recolors, place all 7 recolors together, or throughout the store in different locations. I tried making a Wal-Mart type of store. You might end up with some customers going to furthest most secluded part of the store, wanting help, then getting negative stars, lol. Anyway, that's my advice about the matter.