Habits While Marathon Gaming

What are some things you keep handy when settling down for a night of gaming? I'll have an energy drink usually, but occasionally like to have a black and mild, maybe a coors light. I find it keeps me a bit level headed when playing so I'm not flipping out because I can't find the bike parts (Dead Rising 2: Case Zero) or when you run into those damn annoying kids (Practically every Halo game).

Nothing really, as I never plan ahead to have them but rather just decide then and there that I'm going to have one. Ideally when this idea pops into my head I will have a frozen pizza that I can pop into the oven a few hours in, or, even better, left over pizza to grab out of the fridge. Chips and pop are a plus. However when I plan to marathon run a movie series or a few seasons of some show I will plan ahead and make sure I have the pop/chips/chocolate/pizza on hand for when the time comes.
 
None of that energy drink crap ever does anything to me but put me to sleep, and the taste of the stuff makes me want to puke. As long as I get a few hours of sleep the night before I have always been pretty good at just forcing myself to stay up as long as I don't get bored. If I get bored though I go out like a light.

1-2 Energy drinks 
2-6 Beer 
1 pack of smokes 
 Some sort of food

I like having soda...lots and lots of soda.  If I don't have soda, i'll have a beer or sometimes a hot chocolate

For me, its less about food, more about having an enjoyable experience. 
 
First, I make sure my schedule is completely clear. 
Second, I do enough work so I won't feel guilty when I am done. 
Third, I take care of any and all social issues (return phone calls, etc) so as not to be disturbed. 
Then I like to take a shower and turn on the A/C, so I will be comfortable and cool.  I'll usually put on gym shorts and a t-shirt kind of thing as well. 
 
Also, to prepare, a day or two before I like to read message boards and watch some YouTube videos so 1) I can get myself psyched up and 2) so I don't need to stop to look something up. 
  
But this also might reflect my age/ place in life, my chances to play games for longer than 1 hour in a sitting are few and far between, so I try to make the most of them.

How long do these marathons last??

As long as there is some bottled water, some energy drinks, and cigarettes, then I'm good.

I just drink a lot of water and eat leftovers. I've never even tried an energy drink before. 

Just a bottle of water. Maybe some tea because I'm a classy man. But always water with the tea. I feel dirty if I don't wash down the tea with water. Same with coffee.  
 
 
Don't want any distractions.

Depends on how long I'll be sitting on my ass but I usually love to have:
3-6 beers + some marijuana (omg drugs, I know). 
Some form of delicious food
Water 
----
That's all I really like to have when I'm just going to sit on my ass all day and game.

One large can of bis. And sodas.

Only on the weekends, a few Miller High Life pounders(keeping it classy) followed by a big old Monster or Rockstar.

i don't prepare besides putting on music or a podcast, i just sit down, start my game and go. about 12 hours later- "shit i gotta get to bed"

Man, how can people drink energy drinks while doing nothing. I would go into convulsions and die due to suppressed hyper-energy.

Soda and chips.

I don't eat while playing games as it gets the controller all greasy and plus eating while you do other things usually just leads to stuffing your face without even realizing it. 
 
All I do when I get ready for a huge play session is I grab some ice water and then get down to playing. Energy drinks don't really have an effect on me (I don't drink much caffeine as it is) for some reason, although I really like how Red Bull tastes.

Food and caffeine, nothing specific, and as long as I have those two things I'm all set. Kinda sad though, I can't even remember the last time I could play a game for more than two hours straight. Grrrrr having a job and going to college at the same time sucks!

Last game I can say I really "marathoned" was MGS4. After that real life (job mostly) got in my way too much to spend more than a couple of hours per day. For that, though, I went out and bought a huge tray of Hawaiian BBQ from one of those places where it all tastes the same. Came with macaroni salad, rice, beef, pork, and chicken along with plenty of sauce. I got that and played MGS4 for about eight straight hours, just eating that when a cinematic was long enough.
In general when I stay up late to play games, I do it with liquor. A martini or anything with vodka. I've gotten to a point where it now keeps me awake rather than making me sleepy...not sure that's healthy.

" Man, how can people drink energy drinks while doing nothing. I would go into convulsions and die due to suppressed hyper-energy. "

"  flipping out because I can't find the bike parts (Dead Rising 2: Case Zero) or when you run into those damn annoying kids (Practically every Halo game). "

I do nothing but play. May grab a water but thats it.

i don't do anything. i usually just sit down and play video games. the longest i have spend playing video games was 17 hours and that was playing wow. i can't do it with other games though for some reason.

Popcorn, soda and the bombcast. Lets fucking do this.

Like the majority of people have already said, just bottled water and a dark room ;)

Try to save as little as possible (if i'm playing a SP game.)

Beer, some form of food, and a comfy pillow. 
 
I tend not to plan out marathon gaming sessions, they just happen.  
So I'm always pausing to get up and drab a drink or snack.