I bought a bunch of these a while ago and to be honest, I have only ever used them a couple times
but that doesn't mean that you won't. I find that these work best with gaffed decks. If you want to
be really ambitious, you could save the plastic wrap from a new deck, seal a gaffed deck, and put
the wrap on, then everything would seem normal. Other than that, there isn't much use for them, but
you may feel otherwise.