A small credit card wallet is placed on the table. A deck of cards is GENUINELY SHUFFLED. The spectator removes ANY CARD. This card is slid into the clear credit card holder (NO SWITCH ETC)

The wallet is flipped over so to show a money clip on the back. Under the clip, there is one banknote. (ANY NOTE FROM ANY COUNTRY CAN BE USED). The wallet is HANDED TO THE SPECTATOR.

THEY remove the note from the clip. Written on the note, in big bold black marker, is: YOU WILL CHOOSE THE JACK OF CLUBS.

THEY slide-out THEIR CHOSEN CARD. It really is the JACK OF CLUBS!

You claim they really had NO CHOICE. The SAME deck is handed to them: EVERY CARD IS BLANK!

You will love the method, it is such a brilliant idea.