Interestingly, I've found that a significant part of my own addiction is behavioural. If (for whatever reason), I know I'm not going to be able to drink tea for a few days, as long as I have something to replace it with that has an appropriate amount of ceremony to it I don't really exhibit the withdrawal symptoms the article mentions.

On the other hand, if I just try and stop I feel useless for about a week (possibly longer, I've only stopped for that long once).