got to be coffee, the best and worst thing to happen to me was getting a job with a starbuck cafe right downstairs. (large cap with extra shot)
For sure coffee but i you want to see more people's result then you can refer these threads about tea or coffee choice .. http://forums.digitalpoint.com/showthread.php?t=991843&highlight=coffee http://forums.digitalpoint.com/showthread.php?t=995359&highlight=coffee
Nothing from above both I prefer one big glass of pure milk in the morning and one at night, thats all for me DON.