I've done it several times. It takes me about 8 days to shake caffeine dependency. The first time was pretty hard, the next ones have been easier. I plan it a

I've done it several times. It takes me about 8 days to shake caffeine dependency. The first time was pretty hard, the next ones have been easier. I plan it a few weeks in advance usually starting a thursday so I get through the worst of it over a weekend. If I'm not taking vacation the following week I reduce it down to just work, food and lots of sleep.