Speaking of the cards: I was able to feed those cards through my LaserJet 4 Plus by telling the printer that they were #10 envelopes and only printing on the "leading edge" of the image. The printer was mostly able to handle those cards, aside from two minor paper jams. This allowed me to print the 24 main game questions (and 12 tie breaker questions in reserve) up on the 4 x 6 cards with the round number and question type (A or B) on the back. If I do say so myself, it looks pretty spiffy.
I only had about 100 of the 4 x 6 cards with me today, but I have lots more at home, and will bring a bunch more with me to print the "response" blank cards on Thursday. The bare minimum number of response cards needed for six games is 144 (6 * 2 * 2 * 6), but I will print at least twice that, because I expect to do the game again sometime and the blanks won't go to waste. I will have to hover over the printer, though, because it will only hold about 20-30 cards at a time in the paper tray, so printing two gross of cards will mean a lot of refilling -- not to mention a chance of running out of printer toner.
I need to buy a box of Sharpie markers. I only have four left from the last time we did the show.