I use a nerdy Excel document each year to keep track of the panels I want to see, where they are, how long they are, and what priority. Other people might enjoy this level of OCD too. I emphasize the word might.
If you're my kinda of OCD about schedules, you can download my spreadsheet from Google Docs.
It's very basic, a different tab for each day, and time listed in fifteen minute increments. I've left one must see panel on the schedule for Thursday. The Google Docs conversion lost some of my formatting (like printing all on one page), but I don't know file sharing sites very well. If someone has recommendations about where I could upload and share an Excel file for free, I'm happy to put it up there too.
Hope someone else finds this helpful!