Suggestion: Show indicator that item is equipped on another job.

[Henlhaw]

I found a good way of sorting my armoury of things that are actually used and things useless. Having a lot of different jobs and class, all at different levels, it was a real mess, specially for the jewelry part.

So, while waiting for the icon you're asking that is a really good idea and will make things a lot simpler, here how I do it :

I repair all my stuff.
I then equip each class one by one, doing one fight with combat classes, one gathering with gathering ones, and one craft with crafters ones.

Then, I get rid of all what is at 100% condition in my armoury, that means it's not used anymore.