Again, this might just be in my head, but the basic concept is that users create "capsules collections" that are a collection of clothes based on an occasion, where any item in the capsule could be swapped to create a new outfit, in the knowledge that each combination will match (to varying degrees). Then other users can like a combination, and it becomes clear which is the best outfit according to the community... I wanted to extend this later to allow users to search for capsules or outfits that contained items they have added to their wardrobe.