I have started a group for users to share when they find two or more items that layer to make what seems like it's own awesome item. An example being two hairs that come together to look like one.
If you're interested, come check out the group Seamlessly Layered
Joined! Sounds incredibly useful to me. c:

Isn't that exactly the same as the longstanding thread Share your layering secrets II. What do you plan to do with your group that would make it more usefull than simply posting in that public thread?
Edit: for the people liking my post, this is not me trying to start shit. this is a genuine question. If Lovely has good ideas I might just join up myself but it would be a shame if layering tips become harder to find because they dissapear into a group forum or something.
The main advantage is categorization. If you're looking for wig tricks specifically, and so on. It's not intended to replace other resources but to be a group of people who really enjoy tinkering with layers.