Print a set of cards on colored cardstock (slides 4-12) and cut them in half horizontally and vertically. Each page has four cards on it, a set has 36 cards. It is very easy to prep!
I print different sets on different colors of cardstock. You can laminate the cards to make them last longer but I’ve been happy with how the cardstock has held up. I like to use different colors for each set because that way if I find a card on the floor (Sad, but true!) I know which set it belongs to. Since I don’t have 12 colors of cardstock, some sets are the same color. That is ok! If the cards get mixed up a bit the game will still work!