Hey Swords - it does feel slightly counter productive for me to say this, but ..

If you have seasonal event items, clothing, caches, container keys etc. and you want to give your left over items away, please offer them for free within the cabal (or via our forums) and do not fill our cabal bank with them.

We would increase Cabal Bank space if we could. Right now though it is as big as the game allows us to have it. It is fantastic that so many of you want to share the loot, you are all very generous!! Please don't stop being generous, sharing your things and being so kind. It is part of what makes our cabal so amazing! 

If you are unsure about whether something can or cannot go into cabal bank, we have an overview here in our Cabal Bank directive.