I drink tea instead of coffee. This is probably the smartest thing I've done as a programmer. I find that drinking tea makes me able to retain my energy over a longer period than with coffee (or colas, which absolutely nukes my energy after a short period). I probably consume three teapots of white tea (specifically White Peony/Bai Mu Dan) per day. I find this particular tea oddly stabilising and being lighter than black and green tea, it's not as savoury, which means I can drink it all day long.
Probably not the same level, as the tea has a lot less. I think for white tea it's probably on the order of 5-30mg per cup, although this is quite random and varies greatly from season to season and with when the leaves are picked. (I suppose using this reasoning that the first flush teas are more loaded than later pickings)
I order my teas online at jingtea.com and palaisdesthes.com
