[zhivota]

I quit caffeine on a regular basis, every few years I'll quit, go a year or two without, then go back on, usually because of something like having to do a lot of international travel where it absolutely helps.

When I quit I do a controlled taper, usually over 3 weeks or so. Currently on a taper now, I'm at 19% of original dose after about 2.5 weeks, and considering pulling the plug completely any day now. I find the hardest part is moving from about 50% original dose to 25%, that's usually where I start to experience the classic headaches and such. I think it's because it's about the window where I start to process all the caffeine out of my body each day, rather than always having some around.