...if they, like rangers and other ranged users, had a 'quiver' of sorts capable of holding either wands or scrolls.
A wand quiver and a satchel-style scroll case are both core D&D items, both are very useful to the class in question (moreso to the pures of the class than splashes/multi-builds), and feature items that are often used but not necessarily first-line weapons (much like a ranger and his arrows/bow). The code would likely be very little different from the currently-existing quivers, and (like quivers) there is the opportunity to create different sizes of them (perhaps the largest would only be available in the DDO store and hold as many as a full inventory page of wands or scrolls?).
Signed, a wizard who often uses almost 2 pages of inventory just in wands and scrolls alone.