I am in big support of this!
[IMG]http://i195.photobucket.com/albums/z35/MonicaRafael34/96095.jpg[/IMG]
Oh, yes, please! It's really annoying to accidentally put a wearable in the wardrobe when I've already got it in!
Yes, I would love this! I don't just put all wearables in my wardrobe (I don't want all of them, usually only ones I like), so this would make sorting my inventory for duplicates a whole lot easier!
Yes please, I would love this!

Yes, I very much agree that this would be a helpful option.
It does get a bit trying receiving that alert every time I try and add an item I am unaware I've already added to my wardrobe.
Yes, please! Although I usually quickstock wearables this would still be a very useful feature.
I usually quickstock my wearables, but this is would be SO useful.
Yes, that would be really useful ;)
Since this thread got bumped I'm reupping my support. Everything mentioned above is still clunkier than it needs to be! Especially WL management :c :c :c