I noticed while picking up my badge today that (a) the line was several hours long, and (b) the badges were pre-printed and the volunteers had to look for each person's name, which struck me as extremely inefficient. I'd like to suggest in future years, you simply print out a bunch of blank badges. When someone reaches the pre-reg booth, just look up the type of badge they had, take a badge of that type, and scribble their name on with a permanent marker. It'll make things go much faster.