When I really need caffeine, its soda that I turn to. I am a big coffee fan though, and am really picky when it comes to it. I won't drink just any coffee, and prefer to make my own. I also like espresso with water (Americanos), quite different from regular coffee but very good. (My regular drink at Starbucks is a "Venti iced Americano with sugarfree hazelnut and no room" with two packets of Sweet n Low and just a splash of half and half.) I used to have a massive collection of those flavored syrups, but now only have a modest few in a winerack in my kitchen. I largely prefer my coffee iced, as it can be drunk faster.