Go to Favorites or Saved in the Navigation Menu
View Saved Closet Items and Just Mine, Community and Shopping Outfit Favorites
Press the heart icon in the item screen (Go to your closet and press your item) to Favourite an Item in Your Closet
Press the bookmark icon in the outfit you want to save.
Press the bookmark icon in the outfit you want to save from the community tab
Just like in Just mine and Community click the bookmark icon!