What are you? Insane isn't close to what one has to be to do that. Besides, it's not certain which items will make it to the toybox and which items won't. Not going to risk deleting items I can't get back, that aren't in the toybox either.
I could delete some tier items, but then I'd have to get those again in the next expansion, which I don't really want to do since some items took a bit too long to get, or are items that I still have from back when I started playing, like
Bubbling Brightbrew Charm and the dark equivalent.