Hi Tina, I did this very thing myself recently - after drinking only 1 cup a day. I would recommend you go cold turkey on a day that you are not at work, and preferably have a few days off - ie. do it when you don't need it to help you be alert for something. Remember also, not to eat any chocolate (contains caffeine). The downside is, yes you will experience a bit of cold turkey, for 2 or 3 days - it feels a bit like you have the kind of headache you often get when you have the cold. However, if you take a few ibuprofen, it will definitely help. After 2 or 3 days, you will feel like a normal person. I found that it helped me to sleep better, and that I wasn't so zombie like in the morning. Also, I had lost my afternoon craving for a bar of chocolate. I too love coffee, and I have found that proper Illy or Lavazza decaff coffee, is not bad at all. Good luck - and let us know how you get on!