Caffeine.
And books. I could open my very own library here.
-Nicotine
-Caffine
-Books
and
-The Internet
Actually, they kinda work together with each other, to insure that I will never, ever get a proper nights sleep.
I don’t know if that’s a good or a bad thing…
Swords, knives, other weapons that don’t use gunpowder. The use, mechanics, and other skills of said weapons.
I never stop. Ever. I ALWAYS have a knife on me.
A blank sheet of high-quality paper. I’ll sit and appreciate it for a minute or more before I can bear to lay down words on it.
The smell of Sheaffer Skrip black ink. Only black, don’t ask me why. Bet I look funny with inkstains on my nose.
Refilling a fountain pen (Aside from the ink smell). I love doing this, almost an obsessive-compulsive thing, and I’ll do it even when I still have a half-full tank.
Raw mesquite honey on coarse bread.
Wasa Crispbread.
Writing and food, my two great pleasures. It’ll be a long, lonely trip, methinks.
Popping bubble-wrap bubbles
Q
Skittles (sour flavour in the green bag)
Travel
Passive smoke (I gave up the active version 8 months ago)
Coffee
Beer (although I’m not alcoholic)
Pretty, smart girls
Pretty, stupid girls
Red Dwarf
Cycling
Chocolate
Porn
Coke (cola)
Blu-Tack
Cracking knuckles and neck (sorry)
Italian foodâ—Š
SKIM MILK
STEAK
CORN ON THE COB W/LOTS OF BUTTER
STAR TREK (ANY ONE OF THEM)
SIMPSONS
FUTURAMA
And the biggest of them all… (drum roll)
MY MOTORCYCLE!!
And i’m going to assume since you said nothhing sappy I should leave my kids out of this… 
[li]eBay[/li][li]Secondhand clothing[/li][li]Alannah Hill clothing[/li][li]Afro Ken[/li]Preserved Prunes
CATNIP!!!
Internet (especially Neopets and Straight Dope)
candy
books (specially sci-fi :))
annoying my friends (gives me a high everytime :D)
fire (playing with)
smileys 
ummm… that’s all i can think of for now.
Marlboro Lights 100s
Diet Coke
The cafe mochas they sell where I work
Blueberry Poptarts
Professional Wrestling
Altoids
#Straightdope chat
Listening to Nirvana
Playing hockey
pool. That’s my number 1 addiction. There is no life without pool. I only schedule vacations spots that include a decent pool hall. Heck, I’ll take a vacation just so I can stay home all week and play pool.
After that it would have to be books. For me, it’s mainly theoretical math books and sci-fi. I have the attention span of a hamster on crack so I never finish one before seeing another book I must have. topology, chaos, number theory and a few others I always mean to get through…someday.
My current sci-fi favorites are David Weber’s “Honor” series and Elizabeth Moon’s series with Esmay Suiza.
Coke (the soft drink.)
chocolate.
coffee.
playstation games.
Macaroni & Cheese
Pixy Stix
sci-fi books
diet orange soda
Dragonball. Though I think ‘addiction’ may be too mild a word.
Metallica
I must listen every day. Old, new, I don’t care. I have to hear some.
Extra Spicy Buffalo Wings
Hot Tea - any kind except herbal
Bass Ale
Flour Tortillas
Those cinnamon-roasted pecans you get at festivals
My bulldog, Pia
Every day I have to kiss her big soft head when I get home -a head that smells like a cross between corn chips and Baby Dog deodorant spritz.
Caramels
Shopping at Old Navy
Bob, the Wonder Pony
Diet Dr. Pepper
Nicotine
Salty, fatty foods like potato chips or cheese popcorn or made on top of the stove popcorn with half a stick of melted butter
The Kinks
Computer games. I could seriously be locked in a room for days on end if I had a really good game or two. I’m currently worrying about how I’ll find time to play CivIII when it comes out, being that I’m already hopelessly addicted to EverQuest, and Mr. Athena occasionally needs some care & feeding as well.
bean_shadow, I’m dangerously close to loving ya now. If Medea’s Child doesn’t marry me, will you?
Definitely the internet. Why’d you think I made a shirt about it?
1). Play Station.
2). Reese’s peanut butter eggs that only come out at Easter time.
3). Porn with dynamics that I have never seen before. Even if it doesn’t get me aroused, I just have to see every type of porn imaginable. Nuns pissing on guys dressed like Nazi soldiers? Great. 3 guys, 2 girls, 1 gopher and a blow up doll in the back of an El Camino? Bring it on! Senior citizens wearing latex and smearing mustard on hermaphrodites? Yes please.
4). Orinoco Flow by Enya. It doesn’t get old to me.
All the good addictions are verboten to me. I have so many allergies and sensitivites . . . It sucks. So, no caffeine, sugar, nicotine or alcohol. You might think that I’d be a scarily healthy person under these conditions, but unfortunately not. My addictions are as follows:
Mints
Diet grapefruit soda
Bottled water
E-mail
The Internet
Writing