I'm kind of addicted to those super cheap freezer pops that come in the plastic sleeves. They take care of both snacks and fluids. They're also basically mess free as long as you have a bin to throw the sleeves in.
Fat free Cheez Its, while bland, are a pretty good gaming snack if you want something that you can leave at your desk. They don't leave any residue on your fingers like the normal ones do.
I don't really drink soda anymore but when I do (once a week if that) I have a coke. Pepsi products just have way too much sugar for me, they actually make me nauseous. It's like 130 calories for a coke/sprite or 170 for a Mountain Dew. I'm the last person who will complain about extra calories but those last 40 just are just more than I can handle in a beverage.
Every time I try to go where I really wanna be it's already where I am, 'cuz I'm already there XBL, PSN, Steam, Origin, BSN, GFAQs, MC: PhilOnDez
If I'm eating at my desk (which I do pretty frequently while I'm on project as I'd rather eat there than watch TV) I eat exclusively with my right hand and drink exclusively with my left hand. That way nothing touches my mouse or keyboard.
I have an AutoHotKey script setup that among other things turns the arrow keys into media keys for me, so when I'm watching anime or something I can just press right Alt+Right Arrow to skip ahead, etc.
Console war in a nutshell: http://imgur.com/xA6GJZ9.png