I've already put my soft cover ancient text "Lankhmar: City of Adventures" in the extra box space storage.
Not sure who is old enough to remember but one thing I will be implimenting for zamora from that old book is the pamphlet of customizable city street maps it came with. Hard to describe if you've never seen it, but the pamphlet book had many blank graphs of city intersections the dm could customize and mark down encounters, stores, guard patrols, etc for a given location (merchant quarter, wharf, etc).