I am just starting the wardrobe achievements and feeling a bit overwhelmed with getting 15k items. feel free to brag about your wardrobe hoarding. it gives me inspiration to keep going.
6,770 as of this post. I'd get the cheaper items first cause it fills up faster.

I currently have 12,825. I just started actively playing again, or at least I'm trying to, so I've missed all sorts of new wearables. :C
Currently, I only have 814, but I've only been playing a little while. I love having lots of things to collect and strive for! :D
