Is it possible that you guys can implement the cash storage? I have too many cash items but don't want to throw them away. If the problem is the item's being transferable between character then you can make each storage unique, that will solve the problem.
Only major cash shop item that I can think of that would benefit the most from this would be pets. However, this would really help out with those who buy donor items and want them transferred.
We have this working in the new source which is being worked on. Too time consuming to bring it into the current source, we may as well continue working on getting the new source ready for release.