I'm a packrat, and thus storage-obsessed, so I'm afraid new and exciting closet ideas are the first things I'll be tossing out, to the exclusion of the really interestin stuff. I'm sure, however, that others will be able to more than make up for this deficiency.
Anyway, (nother dragons-don't-get-no-respect whinge) since scales are so bulky compared to jewelry/cloth armor, a scale cubby (20:1 bulk/item ratio, nice small footprint) would be a godsend. Tiered would be even more interesting, (provided higher tiers allowed more items/bulk per sqm rather than less, as is the case with biped stuff.
While we're on the subject of specialized storage, a high-item, low-bulk tool shed for bipeds wouldn't be amiss either. Just a thought.