First of all I mean Grievous Leeching Ward, unique shield from Leeching Plate set, dropped by Lord Warden in ICP.
It cannot be "stacked" in bank or single character inventory. Many other uniques may be used (eg double wielding Knife of shadows, unique daggers from Viper's Sting set) or put into bank in multiple pieces -why not this shield? I'd like to try this set on my tank, so far been unlucky in farming "ordinary" shield.
Secondly - Hidden Treasure and Crafting Survey maps. I suppose I'm not the only player who, carrying (for example) Cyrodil Treasure Map III in inventory got another Cyrodil Treasure Map III unlocking a chest. Now I have possibility to call my Banker, but previously had to accept several "unlucky" drops.
Probaply other Players can list some more similar uniques...
There are plenty of unique items ingame, that may be stacked in multiple pieces in bank, ZOS please - remove those several "exceptions".