These are helpful posts, and thanks for starting the thread, Ken!
I would like to add creamy peanut butter to the cleaner list.
Someone had posted in another thread regarding its use for removing sticker residue from aprons/arches (thank you to whoever made that post!).
I used peanut butter with a single edge razor blade to carefully remove residue from two aprons and it worked very well (and the effort didn't remove the underlying paint/webbing).