Everytime I go to a conference I always have enough of a change in my title or group that I need new business cards... I have a full box of business cards (250) (well, ok, I think I gave 3 away to a couple of people at work)... I want to have none left by the time I leave the PDC... There are supposed to be 7,000 or more people at the PDC... I just need to convince 3.5% of the audience that I'm interesting enough for them to ask for my business card... ?