Going cold turkey

So, over the holiday break I didn't have any caffeine at all. I'm trying to hold off again now that the work week has started, but I'm getting twitchy. I'm not suffering from a big headache or anything, I'm just accustomed to having my can of Citrus Drop every morning as I head to work. I think I'd like to go a week without it, just to prove to myself that I'm not horribly addicted. I'll let myself have some Thursday, since I have a morning meeting then.