I enjoy performing brainwave and invisible deck for family and friends, however, I have slight to moderate arthritis in my hands, comes and goes - trouble with the separation - any suggestions to make it a bit easier?
Thanks.
Nat

Sometimes the deck is of lousy quality. A magic shop owner asked me to demo an Invisible Deck, but I had to tell him that his deck was useless crap.

Sometimes, soaping the cards' smooth sides will help them separate more easily. I usually use Jergens. There are videos on YouTube on how to soap a card, but I rub the bar onto the card's surface. It will ruin roughed surfaces if applied there.