@Theanderblast: Yes, but I don’t *like* the cruise-line shampoo and body wash. 🙂
I’m not really in possession of costumes, either, but when writing general advice, one must consider one’s audience, and more than one person has mentioned steampunk formal wear (presumably involving hard-ish trim items and/or a top hat), Fancy Pants, and other assorted bulky clothing items.