My collections list is for FB that I own. My samples list is for samples and/or decants that I own. My to-test list is similar to my wishlist, except that I may not have actually sampled the perfume on my skin, and need to test out a small vial before knowing whether I want a FB or not. My swap list contains either decants or partially full FBs that I would like to swap. I am very interested in swapping and exchanging and/or purchasing decants! Love to try new smells.