Recently I was in the mood for some re-decoration & took the Sapphire Claw which I had used in its dungeon a long time ago and which was subsequently just lying around my house.
However now I can't drop it or store as I get the message it's a quest item and can't be dropped. Is there any way for me drop it from my inventory?
At least it doesn't weigh much, .5, I think. What really svcks is your inventory not clearing the heavy quest items. I'm stuck with ALL the instruments from the Bards' College quests! Not ONE of the instructors took that very special must-have item they sent me to find after I hunted it down and brought it to them, and I can't drop the things either, since they're still flagged as quest items even though I've completed the quests. Those instruments weigh a LOT.
Then there are the Briar Hearts, which also weigh .5 each. Before I'd even encountered the "Repairing the Phial" quest I picked up a Briar Heart in some dungeon and it stuck in my inventory as a quest item. Since then any Briar Heart I gather stays stuck too, I'm up to 5 now. What's most frustrating is that the "Repairing the Phial" quest is broken, so it never updates that you have even one Briar Heart!
Then there's that Mysterious Gem, another .5 weight... DON't pick it up unless you definitely plan to go the thief route, because it... and all of them you pick up afterward... will also stay stuck in your inventory. Of course, if you choose to complete that quest, it probably clears from your inventory... but I don't know, since I never play thieves.