Coffee
Am I the only one who doesn't actually like the stuff anyway? I mean... it's sharp, bitter and pungent. Anything coffee-flavoured is normally disgusting anyway (and always the last chocolate left in the bottom / the last Revel left in the bag) and coffee itself is just stronger-flavoured than that (seeing as most "coffee-flavour" is actually coffee, unlike other flavours).
And, yes, I am living with an Italian who insists on drinking a ridiculously tiny cup of highly-concentrated, coffee-smelling mud every morning (made in a little espresso kettle that steams water through tightly-packed coffee grounds - the "proper" ones are normally put on the hob, but she also has an electric one that looks identical).
And for some reason I'm always the odd-one-out in the IT department because everyone else seems to live on it. You know what? My coding doesn't need the distraction of strong-smelling, staining, spillable, drinks used purely to prop addicts back up to their "normal" state after 5-10 mins of "brewing" the damn stuff. I'm much happier with a Coke (diet, sugar-free, extra-sugar, I care not), Fanta, or just water - at least it *tastes* vaguely pleasant, not like I've licked the bottom of a lid of a very hot jar of marmite.
I've worked in IT departments where everyone else is dependent on the stuff and in those circumstances you consume a lot of it yourself (otherwise they JUST KEEP ASKING and that's more destructive to your computing than just having a cup of coffee put beside you and you ignoring it). At no point did I actually feel any desire to actually drink the stuff myself, worked there for about a year drinking several cups a day because people kept making them for me and I never once decided to make one for myself (I never even made myself one when it was my turn on the "coffee-making rota"). Stopped working there, still didn't see the need to have one. In fact, I don't think I've had one since and that was 3-4 years ago now.
It tastes horrible. Stop drinking that crap. At least drink something that *tastes* nice if it's going to be damaging / addictive to you. To quote Crocodile Dundee - "Well, you can live on it, but it tastes like sh**".