How much easier is it to find set items when the set's name comes first...why aren't all items like that? ...is there an addon that organizes items by sets?
I use that addon. It's really useful, but it's not what @ck37090's asking for.
It'd be nice if there was some sorting system that would break items in your inventory up, and sorted them by their set and slot. So we could, quickly, at a glance, identify which sets something belonged to.
It'd also be nice if there weren't two separate Night Mother sets. One crafted and one that drops in medium (and used to drop in heavy). (Night Mother's Gaze, and Night Mother's Embrace, if you're wondering.) Both are simply called, "Night Mother's X" in your inventory.