Regarding this, I support the addition of a storage container being added similar to the Rune Pouch where you can store Clue Scrolls whilst out on slayer tasks/boss trips etc as they do fill up your inventory, although I would only support this if the pick up system stayed the same. There's no reason to have Clue Scrolls auto pick up, picking them up manually is fine and not that difficult (you could make it so that they automatically go into this new container, but even that's a push that I'm not 100% sold on).
If Clue Scrolls became automatically picked up, we'd have a similar situation with Blue Dragons where people would just camp them all day with a cannon. Automatic pickups is a 100% no support from me.