I agree that something needs to be done with crafting tools and ingridients. Maybe tag tools as ingridients as well? That way everything can be one tab. But it's not a very good solution for weapons like knives, axes etc. which are used both in combat and as a crafting tool.
That's not the best solution because potions, scrolls, clothing and armour can also be ingredients in crafting, so you'll just end up with an ingredients tab nearly as big as the "All" tab, which defests the point.