I tried giving all that up for a while but decided if I was going to miserable anyway, I would do it in style. I did quit them after 6 PM in the evening and switched to half caf coffee and espresso ( which actually has the least amount of caffeine but the best flavor) if I had to caffinate after 2 or 3 in the afternoon. Strangely enough, dark cherries seemed to help although I don't know why.

marni