This is my yearly posting to remind you that If you are planning on buying a multi-day membership for Dragon Con ONSITE at the Convention, please consider filling out the Pre Data Entry form located here http://www.dragoncon.org/dc_pde_barcode.php
This will save them time entering your data into the system and dramatically reduce the time.
Also, bring cash. I mean actual dollar bills and such. Preferably in exact change. This will save you the time of dealing with the credit card machines which puts you at the mercy of Yet Another Digital System That Can Fail.