Just finished up with the Magic the Gathering New Pyrexia pre-release/Free Comic Book Day event. Overall, things went pretty well. Since we are a gaming store that sells comics, our layout works very well for running the two events. We already have a large gaming space available so handling the pre-release turnout was no problem, we even had space available for a pick up Warhammer 40,000 game and a HeroClix teaching session.
Free Comic Book Day events, meanwhile, stayed at the front of the store. We put the display of free comics as well as the raffle prize and the actress in the Wonder Woman costume there, which did cause a little trouble at the beginning, since people clustering around the display of free comics impeded traffic flow for about half an hour but the first rush soon subsided and we put Wonder Woman running the cash register for a chuckle from our customers. We never were swamped with people coming in for free comics so were able to handle the customers with only a small increase in regular staffing and and a 70% increase in sales over a typical Saturday.