The one problem I have with the armory system is that it's impossible to keep things organized. I'll organize my gear by class (heavy armor, DoW armor, DoM armor, gathering armor, crafting armor), but after switching classes two or three times, it becomes just one big jumble.

The solution to this would to keep an equipped item in the armory, but grey it out or otherwise show that it is equipped. That way, the spot will be saved and any organization will be preserved. This would effectively make us lose one armory space per armor category, but it will do more good than bad.