I'm struggling with my coffee intake as well. Most days I'm having about 3. There are days when it could 4/5, depending on how busy and tired I am.
I also drink copious amounts of green/white tea in between those coffees. I have no doubt it is contributing to my lack of "restful" sleep.
Yet, every morning...it's the first bloody thing I do. If I can get down to 2 a day...I'd be happy.