Permission the volume field on item records
The volume field might seem straightforward, but when it's not standardized—or when anyone can input anything—it quickly becomes a source of frustration, especially with holds and sorting. Imagine a patron placing a hold on “Volume 2,” but one record says “v.2,” another says “Vol 2,” and another just “2”… chaos ensues.
Making that field permission-based could go a long way in preserving data consistency and reducing hold errors. It puts a bit more control in the hands of cataloging staff or system administrators

-
Christy Sayre commented
If that ability is controlled by permission, those without the permission just won't be able to add a volume, which has a similar negative impact in a consortium setting, where some items might have a volume indication, correctly formatted or not, and others have no volume indicated.
Another idea might be the ability to create a drop-down selection populated with correctly and suitably formatted volume indication.