Maybe some of you have been baristas at one time or another, but shots of espresso are my favorite way to indulge in caffeine. With a cup of coffee you get a heavy, sweaty feeling with a kind of twacked out shaky vibe. I am more sensitive to others with chemicals (except LSD) in almost every case, so this is really an odd feeling for me. Not to mention you have to just shit, so bad. Espresso shots are a very pure way to consume the natural oils and flavors and caffeine content of beans. When you drink down a single or double, I prefer double, you actually feel somewhat of a comeup. It's feels more stepped, jerkily layered I suppose, until you get to this point of just fuzzy light-headed high energy and best of all clean feeling buzz. There's no stomach feeling, no lump in throat feeling, just cleanliness. It lasts for a good 4 hours or so.
What I'm trying to say is take a double shot before you head out to wherever you're going. Get a lighter roast for the flavor and caffeine content. It even helps the MDMA feelings, especially euphoria. I do this every time I drop and it's perfect.