THings to think about....
Are you staying in a hotel or at a friends place?
Is the Con open 24 hours or does it shut down at night?
Food...bring as much food as you can so you can use your money for other things. Include healty things in said food, after a day or so of eating only snack food at the table, or the stuff most Cons pass off as food, your body will hate you.
Drinks...#1 is water, drink as much as is reasonable during the day (not so your running to the bathroom every 10 min) and save the coke, pepsi, etc for the evening/night games when you'll need the caffine.
Deoderent...a must have, this is the single biggest grip my gaming group has about cons, it seems to bring out the people that have no concept of BO. (we have even taken to keeping samples with us to give to really bad offenders)
Sleep... this one can be up in the air depending on how the con is set up, if they shut down at night you got automatic sleep time. Otherwise make some time for it, or at least arrange an extra day off after the con to catch up so your not a zombie a$$hole when you get back to work/home.
This is from personal experience, when I first started going to cons I would only sleep about 8 hours between Friday morning and Monday night with no artifical help other than large amounts of Jolt Soda. BUt by the end I was usless as a player and couldn't remember what I did the last half of the con by the time I got home.
Try to be a respectful gamer and put a good image out for our hobby. I say this because if the event is at a hotel or most of the people attending are staying at one hotel, their will be none gamers there. And remember one of the great parts of our game is its designed to be modified to fit diffrent peoples tastes, you will game with some people that have really weird house rules, etheir go with the flow or move on and make it a better event for all involved.
Gaming supplies... assuming you will have a safe storage area bring anything game related you think you might need, including Magic Cards, board games etc. (these give you something to do as you wait for your next event)
Check out the open gaming areas, try new games, meet new people, see the world
As mentioned above, make sure you have a good time!!
Like your self I have not been to GenCon (not sure when I'll make it) but I have attended Cons for the last 10 years (at least one a year) in two states including Origins in Dallas one of the last years it was still moving around the country.
Let me know if I missed anything.
JDragon
Sorry to drag on their but, this is actually a subject I have some expeience on, and think every gamer should experience at least once. (Cons not my ranting

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