Try to bring a friend or have a friend attending also so you have a safety net. You might lose a wallet or the hotel might screw you over which has happened multiple times to me in the past. And knowing another person makes life easier knowing your entire trip didnt just get flushed down the crapper. And just for general safety especially if you have a medical condition that doesnt warrant a special access badge. Ie you have blood sugar problems or you are starving but cant leave your spot in line to go eat and avoid passing out. Had that happen to one of my friends when he was on the line for crispin freeman. And luckily the staff and the people are otakon are some of the best because they are all your brothers and sisters and mostly will help a nerd in need. I told one of the staff he let me get close to the line told the closest nerd my friends situation said pass it down so it could reach him in the middle.