Ideas for retail stores

I love running retail shops, but not sure what i've done with new packs in particular. My Sims have a bakery, and on another lot a full mall with clothing store, art store, electronics shop, music shop, food court, etc. (I didn't make it, I can't build, I just searched the gallery until I found one I liked)

I would like an update for a proper bakery though, so that if my Sims make cupcakes they can sell just one off the plate at a diff rate than the full plate, etc.