Heaven offers a repository of Clan Storage for Angels to use to store items which may benefit their common good. There are few defined restrictions on what may be stored in the locker, but the intent is for Angels to submit items which may be used by other Angels, as opposed to being used as personal locker storage.
The end benefit is that items in Clan Storage tend to be more useful, if for no other reason than all Angels by definition must be Clerics as their primary class. Consequentially, much of the gear in Clan Storage tends to be beneficial toward Clerics.
Clan Storage can be used with equal frequency to store lower-level items intended for newly-initiated Angels, as well as a safe place to store higher-level items that one may not be quite ready for yet. And since Angels eventually gain levels, when gear is no longer needed, it can be submitted back to Clan Storage for use by other Angels, instead of being lost by the clan by being donated to the general realm, or even sacrificed to the gods.